MEQ
MEQ is a slang term among Warhammer 40,000 players that stands for (Space) Marine Equivalent. It refers to any unit with a stat-line similar to that of a Space Marine (WS4 BS4 S4 T4 W1 I4 A1 Ld8 Sv3+). Usually the important part is how easy or hard they are to kill (Toughness, Wounds and armor save).
Examples:
- Space Marines in Power Armour
- Chaos Space Marines in Power Armour (with the exception of Plague Marines, who have an extra point of Toughness)
- Tau Crisis Battlesuite
- Necron Immortal
TEQ
TEQ, short for Terminator Equivalent, refers to a unit with a statline similar to Space Marine Terminators. Usually, this means a 2+ armor save and some kind of Invulnerable save (on top of the regular MEQ profile).
Examples:
- Space Marine Terminators
- Grey Knight Paladins (which are actually just super-Terminators)
- Dark Angels Deathwing Terminators and Deathwing Knights (although, again, these are just super-Terminators)
- Chaos Space Marine Mutilators and Obliterators (which are just mutated Terminators), plus Chaos Terminators (which are just Terminators with spikes)
You may be noticing a pattern. Namely, that there aren't many non-Terminator TEQs.
GEQ
GEQ, short for Guard Equivalent, refers to units with a statline similar to Guardsmen. Usually, this means S3, T3, and a 5+ save.
Examples:
- Imperial Guard (pretty much everyone)
- Eldar Guardians
- Dark Eldar Kabalite Warriors
- Tau Fire Warriors
Knight
Although not a widely-accepted term, Knight has been used by some to refer to the large models being released by Games Workshop. Usually, these have a high Toughness (at least 6, and often more), a large number of Wounds (at least three and sometimes up to six), a 3+ or 2+ save, and an invulnerable save (or some way to get them). They also seem have to have high mobility, usually in the form of jetpacks or teleporters or similar. These models are also very large, which means it's hard to hide them, and most are Monstrous Creatures.
The term "Knight" is both a reference to the high incidence of the term "knight" in their names, and the Knight Titans of Epic 40,000.
Examples: