Dictionary definition · barb
noun
- an aggressive remark directed at a person like a missile and intended to have a telling effect"his parting shot was ‘drop dead’"
- the pointed part of barbed wire
- a subsidiary point facing opposite from the main point that makes an arrowhead or spear hard to remove
- one of the parallel filaments projecting from the main shaft of a feather
verb
- provide with barbs"barbed wire"
Source: Open English WordNet (CC BY 4.0).