noun, verb, -gad⋅ed, -gad⋅ing.| 1. | a military unit having its own headquarters and consisting of two or more regiments, squadrons, groups, or battalions. |
| 2. | a large body of troops. |
| 3. | a group of individuals organized for a particular purpose: a fire brigade; a rescue brigade. |
| 4. | bucket brigade. |
| 5. | History/Historical. a convoy of canoes, sleds, wagons, or pack animals, esp. as used to supply trappers in the 18th- and 19th-century Canadian and U.S. fur trade. |
| 6. | to form into a brigade. |
| 7. | to group together. |