A nuke can mean different things, all related to the phenomenon called "nuking" (see below).

As a noun

As a noun, it refers to an attack - either magical or physical - which is much more powerful than a "normal" attack.

As a verb

As a verb (to / will nuke, am / is / are nuking, has / have nuked), it refers to a combat tactic in which the player attempts to gush out the highest amount of damage possible.

  • Nuking
  • "Overnuking" is where a player deals so much damage (therefore generating excess threat) that it pulls aggro away from the tank.