Real Dictionary

nuke
countable noun: A nuke is a nuclear weapon.

nuke in American English
a nuclear weapon or submarine
to attack with nuclear weapons
adjective: of or pertaining to a nuclear or thermonuclear weapon or to a nuclear plant
noun: a nuclear or thermonuclear weapon
transitive verb: to attack, defeat, or destroy with or as if with nuclear weapons

nuke in British English
to attack or destroy with nuclear weapons
noun: a nuclear bomb