Cannabis Glossary: 100+ Terms Every Consumer Should Know

Why This Matters

Walking into a dispensary for the first time can feel like visiting a foreign country. The budtender starts talking about “terps,” “live resin,” and “entourage effect,” and suddenly you’re nodding along while understanding absolutely nothing. Sound familiar? You’re not alone.

Cannabis has its own rich vocabulary — built from decades of culture, science, and innovation. Knowing these terms doesn’t just make you sound informed; it helps you make better choices about what you consume, how you consume it, and what kind of experience you’re looking for.

This glossary covers 100+ essential cannabis terms, organized from the absolute basics to more advanced concepts. Bookmark this page. You’ll come back to it more than you think.

No question is a dumb question here. Everyone started somewhere, and this guide meets you exactly where you are.

The Basics: Core Cannabis Concepts

Before we dive into the full glossary, let’s cover the foundational terms you’ll encounter on day one. These are the building blocks everything else rests on.

What You Need to Know First

Cannabis is a flowering plant genus that produces compounds called cannabinoids and terpenes. These compounds interact with your body’s endocannabinoid system (ECS) — a network of receptors that helps regulate mood, pain, appetite, sleep, and more.

The two most well-known cannabinoids are THC (tetrahydrocannabinol), which produces the “high,” and CBD (cannabidiol), which doesn’t produce intoxication but may support wellness in other ways.

You’ll also hear a lot about strains (increasingly called cultivars) — these are specific varieties of the cannabis plant, each with a unique combination of cannabinoids and terpenes that shape the experience.

Here at This Is Why I’m High, we go beyond outdated indica/sativa labels and classify cannabis experiences into High Families — a system based on terpene chemistry that more accurately describes what you’ll actually feel. More on that below.

Key Starter Terms

Term	Simple Definition
Cannabis	The plant genus that includes hemp and marijuana varieties
THC	The primary psychoactive cannabinoid; what gets you high
CBD	A non-intoxicating cannabinoid associated with calm and wellness
Terpene	Aromatic compounds in cannabis that shape flavor, scent, and effects
Strain / Cultivar	A specific variety of cannabis with unique characteristics
Flower	The dried, smokable buds of the cannabis plant
Edible	Cannabis-infused food or drink
Concentrate	A potent cannabis extract (wax, shatter, oil, etc.)
Dispensary	A licensed retail shop where cannabis is legally sold
Budtender	A dispensary employee who helps customers choose products

The Complete Cannabis Glossary: A to Z

Here it is — your comprehensive reference guide. We’ve organized everything alphabetically so you can quickly find any term. Terms are grouped into thematic sections for easier browsing, but you can also just scroll and explore.

Plant Anatomy & Growing

#	Term	Definition
1	Bud	The flower of the cannabis plant, harvested and dried for consumption
2	Calyx	The small, bulbous structure on the bud that contains the highest concentration of trichomes
3	Clone	A cutting from a cannabis plant used to grow a genetically identical new plant
4	Cola	The main flowering cluster at the top of a cannabis plant
5	Cotyledon	The first pair of leaves that sprout from a cannabis seed
6	Curing	The process of slowly drying harvested buds in controlled conditions to improve flavor and potency
7	Fan leaves	The large, iconic leaves of the cannabis plant; low in cannabinoids but important for photosynthesis
8	Feminized seeds	Seeds bred to produce only female (bud-producing) plants
9	Flowering time	The period during which a cannabis plant produces buds
10	Hemp	Cannabis plants containing 0.3% THC or less by dry weight; legally distinct from marijuana in the U.S.
11	Hybrid	A plant bred from two or more different cannabis cultivars
12	Node	The point on a stem where branches or leaves grow
13	Phenotype (pheno)	The observable characteristics of a specific plant, influenced by both genetics and environment
14	Pistil	The hair-like structures on buds, often orange or red, that catch pollen
15	Ruderalis	A lesser-known cannabis subspecies known for auto-flowering traits
16	Sugar leaves	Small, trichome-coated leaves that grow within the bud; often used for extracts
17	Trichome	Tiny, crystal-like glands on the plant surface that produce cannabinoids and terpenes
18	Vegetative stage	The growth phase before flowering, when the plant develops stems and leaves

Cannabinoids

#	Term	Definition
19	Cannabinoid	A chemical compound found in cannabis that interacts with the body’s endocannabinoid system
20	THC (Δ9-THC)	Delta-9-tetrahydrocannabinol; the main psychoactive compound in cannabis
21	CBD (Cannabidiol)	A non-intoxicating cannabinoid that may support relaxation and wellness
22	CBG (Cannabigerol)	Often called the “mother cannabinoid” because other cannabinoids are synthesized from it
23	CBN (Cannabinol)	A mildly psychoactive cannabinoid that forms as THC ages; some find it may support sleep
24	CBC (Cannabichromene)	A non-intoxicating cannabinoid being studied for potential wellness applications
25	THCA	The raw, non-psychoactive form of THC found in fresh cannabis; converts to THC with heat
26	CBDA	The raw, acidic form of CBD found in fresh cannabis
27	Delta-8 THC	A less potent psychoactive cannabinoid similar to Delta-9 THC; exists in a legal gray area
28	THCV (Tetrahydrocannabivarin)	A cannabinoid being researched for its unique effects, sometimes called “diet weed” for its potential appetite-suppressing properties
29	Endocannabinoid system (ECS)	Your body’s built-in network of receptors (CB1 and CB2) that cannabinoids interact with [Russo, 2011]
30	CB1 receptors	Endocannabinoid receptors concentrated in the brain and nervous system
31	CB2 receptors	Endocannabinoid receptors found primarily in the immune system and peripheral tissues
32	Full-spectrum	A product containing the complete range of cannabinoids, terpenes, and other plant compounds
33	Broad-spectrum	Similar to full-spectrum but with THC removed
34	Isolate	A pure, single cannabinoid extract (e.g., CBD isolate is 99%+ CBD)

Terpenes & the High Families

Terpenes are the aromatic compounds that give each cannabis cultivar its unique scent and flavor — from piney to citrusy to funky. But they do much more than smell nice. Research suggests terpenes may actively shape your experience through what’s called the entourage effect [Russo, 2011].

That’s why we built the High Families system — to help you choose cannabis based on terpene profiles rather than the outdated indica/sativa binary.

#	Term	Definition
35	Terpene	An aromatic compound produced by many plants, including cannabis, that influences scent, flavor, and effects
36	Myrcene	The most common cannabis terpene; earthy, musky aroma; associated with the Relaxing High family
37	Limonene	A citrus-scented terpene associated with the Uplifting High family
38	Linalool	A floral terpene (also found in lavender) associated with the Uplifting High family
39	Caryophyllene (β-caryophyllene)	A spicy, peppery terpene that also acts on CB2 receptors; associated with the Relieving High family
40	Pinene	A pine-scented terpene found in many cannabis cultivars and conifer trees
41	Terpinolene	A complex, floral-herbal terpene associated with the Energetic High family
42	Ocimene	A sweet, herbaceous terpene associated with the Energetic High family
43	Humulene	An earthy, woody terpene (also found in hops) associated with the Relieving High family
44	Entourage effect	The theory that cannabinoids and terpenes work together synergistically to produce more nuanced effects than any single compound alone [Russo, 2011]
45	Terpene profile	The specific combination and concentration of terpenes in a given cultivar
46	High Families	TIWIH’s classification system that groups cannabis experiences by terpene chemistry into six families: Uplifting, Energetic, Relaxing, Balancing, Relieving, and Entourage

Consumption Methods

#	Term	Definition
47	Smoking	Inhaling combusted cannabis flower, typically through a joint, pipe, or bong
48	Vaping / Vaporizing	Heating cannabis to release cannabinoids and terpenes as vapor without combustion
49	Dabbing	Vaporizing cannabis concentrates on a heated surface (a “nail” or “banger”)
50	Edible	Any food or drink infused with cannabis; effects take longer to onset (30 min–2 hours) but last longer
51	Tincture	A liquid cannabis extract, usually taken under the tongue (sublingually)
52	Topical	Cannabis-infused creams, balms, or lotions applied to the skin; generally non-intoxicating
53	Transdermal patch	A patch that delivers cannabinoids through the skin into the bloodstream
54	Sublingual	Administering cannabis (usually a tincture or strip) under the tongue for faster absorption
55	Suppository	A cannabis product inserted rectally or vaginally for localized or systemic effects
56	Microdose	Consuming very small amounts of cannabis (typically 1–2.5mg THC) for subtle effects
57	Macro dose	A larger-than-typical cannabis dose, usually 50mg+ THC
58	Onset time	How long it takes to feel effects after consumption
59	Duration	How long the effects of cannabis last
60	Bioavailability	The percentage of a cannabinoid that actually enters your bloodstream

Products & Concentrates

#	Term	Definition
61	Concentrate	Any cannabis product made by extracting cannabinoids and terpenes from plant material
62	Shatter	A brittle, glass-like concentrate known for high potency
63	Wax	A soft, opaque concentrate with a waxy texture
64	Budder / Badder	A creamy, butter-like concentrate that’s easy to work with
65	Live resin	A concentrate made from fresh-frozen cannabis, preserving more terpenes
66	Live rosin	A solventless concentrate made by applying heat and pressure to fresh-frozen bubble hash
67	Rosin	A solventless extract made by pressing cannabis with heat and pressure
68	Distillate	A highly refined cannabis oil, usually very high in THC or CBD but low in terpenes
69	RSO (Rick Simpson Oil)	A thick, full-spectrum cannabis oil made with ethanol extraction
70	Hash / Hashish	One of the oldest concentrates; compressed trichomes (kief)
71	Bubble hash	Hash made using ice water to separate trichomes from plant material
72	Kief	The loose trichomes that collect at the bottom of a grinder
73	Cartridge (cart)	A pre-filled vape cartridge containing cannabis oil
74	Pre-roll	A pre-made cannabis joint, ready to smoke
75	Infused pre-roll	A pre-roll enhanced with concentrates, kief, or additional cannabinoids
76	Solventless	Extracts made without chemical solvents (using heat, pressure, or water instead)
77	BHO (Butane Hash Oil)	Concentrate extracted using butane as a solvent
78	CO2 extraction	A method using pressurized carbon dioxide to extract cannabinoids and terpenes

Gear & Accessories

#	Term	Definition
79	Bong	A water pipe used to filterand cool smoke before inhalation
80	Pipe	A handheld smoking device with a bowl, carb, and mouthpiece
81	Spoon pipe	The most common handheld pipe shape, resembling a spoon
82	One-hitter / Chillum	A small, narrow pipe designed for a single hit
83	Dugout	A small wooden box with two chambers: one for the one-hitter, one for ground flower
84	Bubbler	A handheld pipe with a water chamber for filtered smoke
85	Dab rig	A glass water pipe specifically designed for vaporizing concentrates
86	Nail / Banger	The heated surface on a dab rig where concentrate is placed
87	E-nail	An electronically heated nail that maintains a precise temperature for dabbing
88	Grinder	A device used to break down cannabis flower for smoking or vaping
89	Vaporizer	A device that heats cannabis to produce vapor rather than smoke
90	Dab pen / Wax pen	A portable vaporizer designed for use with concentrates

Dispensary & Retail Terms

#	Term	Definition
91	Dispensary	A state-licensed retail store where cannabis products are legally sold
92	Budtender	A dispensary staff member trained to help customers select products
93	Menu	The list of available cannabis products at a dispensary
94	COA (Certificate of Analysis)	A third-party lab report showing a product’s cannabinoid and terpene content, as well as testing for contaminants
95	Seed to sale	The tracked journey of a cannabis product from cultivation through retail sale
96	Compliance	Adherence to state cannabis regulations governing testing, packaging, and sale
97	Recreational (adult-use)	Cannabis sold to anyone 21+ without a medical requirement
98	Medical	Cannabis sold to patients with a qualifying condition and valid medical card
99	METRC	The most common state-mandated seed-to-sale tracking software used by cannabis businesses
100	POS (Point of Sale)	The software system dispensaries use to manage inventory and transactions
101	Eighth (1/8)	One-eighth of an ounce of cannabis (approximately 3.5 grams); the most common purchase quantity
102	Quarter	One-quarter ounce of cannabis (approximately 7 grams)
103	Half (half-O)	Half an ounce of cannabis (approximately 14 grams)
104	Ounce (O, zip)	One full ounce of cannabis (28 grams)
105	Dime bag	A $10 bag of cannabis, typically about 1 gram (historical slang)

Effects & Experience

#	Term	Definition
106	High	The psychoactive experience produced by THC
107	Indica effects	Traditionally associated with body relaxation, sedation, and couch-lock
108	Sativa effects	Traditionally associated with cerebral, energetic, uplifting experiences
109	Couch-lock	A heavy, sedated feeling that makes you want to stay seated
110	Cottonmouth (dry mouth)	Reduced saliva production, a common side effect of cannabis
111	Munchies	Increased appetite triggered by THC
112	Paranoia	Anxiety or fear that can occur with high doses, particularly of THC
113	Tolerance	Reduced sensitivity to cannabis effects after repeated use
114	Tolerance break (T-break)	A deliberate pause from cannabis use to reset tolerance
115	Greening out	Consuming too much cannabis and feeling overwhelmed, nauseous, or anxious
116	Body high	Cannabis effects felt primarily in the body — warmth, relaxation, heaviness
117	Head high	Cannabis effects felt primarily in the mind — euphoria, creativity, altered thinking
118	Mood elevation	A lift in mood commonly reported with cannabis use
119	Cerebral	A cannabis experience that is primarily mental and cognitive

Potency & Testing

#	Term	Definition
120	Potency	The concentration of THC or other cannabinoids in a product, usually expressed as a percentage
121	Total THC	The combined measurement of THCA (converted) + Delta-9 THC
122	Decarboxylation (decarb)	Heating cannabis to activate THCA into THC and CBDA into CBD
123	PPM (Parts Per Million)	Unit used to measure trace contaminants in cannabis testing
124	Terpene percentage	The total concentration of terpenes in a sample, expressed as a percentage of weight
125	Lab-tested	Cannabis that has been tested by a licensed third-party laboratory for purity and potency
126	Pesticide screening	Testing cannabis for harmful agricultural chemicals
127	Microbial testing	Checking for harmful bacteria, mold, or yeast in cannabis products
128	Residual solvents	Testing for leftover extraction chemicals that shouldn’t remain in the final product

Cultivation & Processing

#	Term	Definition
129	Autoflower	A cannabis strain that flowers automatically based on age rather than light cycles
130	Photoperiod	Cannabis plants that flower based on changes in light exposure
131	Indoor grown	Cannabis cultivated in a controlled indoor environment
132	Outdoor grown	Cannabis grown outside in natural sunlight
133	Greenhouse grown	Cannabis cultivated in a glass or plastic greenhouse structure
134	Organic	Cannabis grown without synthetic fertilizers or pesticides
135	Craft cannabis	Small-batch, artisanal cannabis grown with extra attention to quality
136	Trim	The leaves removed from buds during harvest processing; often used to make extracts
137	Flush	Feeding plants only water in the final weeks of growth to remove nutrient buildup
138	Cure	The post-harvest process of slowly drying buds in jars to develop flavor and smooth smoke
139	Water activity (aw)	A measure of available moisture in cannabis used to predict shelf life and mold risk
140	Terp sauce	A cannabis extract with high terpene content, often combined with THCA diamonds
141	THCA diamonds	Crystalline structures of pure THCA that form in highly concentrated extracts
142	Badder / Batter	A whipped concentrate with a smooth, frosting-like consistency

Quick Reference: Common Abbreviations

Abbreviation	Full Term
THC	Tetrahydrocannabinol
CBD	Cannabidiol
CBG	Cannabigerol
CBN	Cannabinol
THCA	Tetrahydrocannabinolic Acid
CBDA	Cannabidiolic Acid
ECS	Endocannabinoid System
COA	Certificate of Analysis
BHO	Butane Hash Oil
RSO	Rick Simpson Oil
OG	Original Gangster (strain lineage designation)
710	Dab/oil culture day (July 10th) — “OIL” upside down
420	International cannabis appreciation time/day

How to Use This Glossary

Now that you have the vocabulary, here’s how to put it to work:

At the dispensary: Ask your budtender about the terpene profile of any product you’re considering. Use terms like “entourage effect,” “live resin,” and “COA” to signal you’re an informed consumer and want quality recommendations.

Reading labels: Check for Total THC percentage, terpene percentages, and whether the product has a COA available. These three data points tell you more than any marketing claim.

Choosing a strain: Instead of asking “is it indica or sativa?” try asking about the dominant terpenes or the High Family classification. This approach is far more predictive of how you’ll actually feel.

Exploring TIWIH: Our platform is built around these concepts. Use the strain finder to filter by terpenes, explore the High Families to match experiences to your mood, and dig into detailed strain profiles that break down every term from this glossary.

Pro tip: Bookmark this page. Cannabis vocabulary evolves constantly, and we update this glossary as new terms emerge in the industry.

Key Takeaways

• Start with the basics: THC, CBD, terpenes, and the endocannabinoid system are the four pillars. Everything else builds on these.
• Skip the indica/sativa labels: They’re imprecise. Ask about terpene profiles and High Families instead for accurate effect predictions.
• Always check the COA: A Certificate of Analysis is your best tool for knowing what’s actually in any cannabis product.
• Potency isn’t everything: A 30% THC flower can feel weaker than a 22% flower with the right terpene profile. Chemistry matters more than numbers.
• Go slow with edibles: Onset is 30 min–2 hours. Bioavailability varies. Start with 5mg THC and wait.
• Use TIWIH: Our strain finder and High Families system are built around this exact vocabulary — so you can shop smarter.

Sources

• Russo, E.B. (2011). Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology, 163(7), 1344–1364.
• National Environmental Health Association. Cannabis 101: Glossary of Related Terms.
• Leafly Cannabis Glossary. leafly.com/news/cannabis-101/glossary-of-cannabis-terms
• Ligresti, A., et al. (2016). From Phytocannabinoids to Cannabinoid Receptors and Endocannabinoids. Pharmacological Reviews, 68(2), 553–606.

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This glossary is intended for educational purposes for adults in jurisdictions where cannabis is legal. Always consume responsibly and in accordance with local laws.