is a specific kind of: criticise, criticize, knock, pick apart.

is a broader term that covers: abuse, blackguard, clapperclaw, shout | claw | vitriol | rip | whang | barrage, bombard | blister, scald, whip | rubbish.

derivation: attack, blast, fire, flack, flak | aggressor, assailant, assaulter, attacker | assaultive, attacking.