WordNet sense 1 (an aggressive remark directed at a person like a missile and intended to have a telling effect):

barb, dig, jibe, shaft, shot, slam

WordNet sense 2 (be compatible, similar or consistent; coincide in their characteristics):

agree, check, correspond, fit, match, tally

WordNet sense 3 (laugh at with contempt and derision):

barrack, flout, jeer, scoff