definition of
barb

[1] #1 barb n. [shot, shaft, slam, dig, jibe, gibe] an aggressive remark directed at a person like a missile and intended to have a telling effect; "his parting shot was 'drop dead'"; "she threw shafts of sarcasm"; "she takes a dig at me every chance she gets". wn

[2] #2 barb v. provide with barbs; "barbed wire". wn

[3] #3 barb n. the pointed part of barbed wire. wn

[4] #4 barb n. a subsidiary point facing opposite from the main point that makes an arrowhead or spear hard to remove. wn

[5] #5 barb n. one of the parallel filaments projecting from the main shaft of a feather. wn