barb - noun

an aggressive remark directed at a person like a missile and intended to have a telling effect

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

barb - verb

• provide with barbs

barb - thesaurus

dig   gibe   jibe   shaft   shot   slam