barb
noun
1. an aggressive remark directed at a person like a missile and intended to have a telling effect
Similar word(s): dig, gibe, jibe, shaft, shot, slam
Definition categories: communication, comment, input, remark
2. the pointed part of barbed wire
Definition categories: man–made, point
3. a subsidiary point facing opposite from the main point that makes an arrowhead or spear hard to remove
Definition categories: man–made, point
4. one of the parallel filaments projecting from the main shaft of a feather