weapon noun
ADJ. deadly, lethal, potent, powerful He was charged with assault with a deadly weapon. | effective, useful | heavy, light The assault forces used heavy weapons, including anti-tank rockets and mortars. | automatic | atomic, biological, chemical, nuclear | offensive, strategic, tactical She pleaded guilty to carrying an offensive weapon. a ban on the use of tactical nuclear weapons | murder | ultimate (often figurative) The workers' ultimate weapon was the strike. | secret (often figurative) The team's secret weapon was their new young defender.
VERB + WEAPON be armed with, carry, have | deploy, fire, use | use sth as (often figurative) She used humour and wit as weapons against her enemies. | aim, point
WEAPON + NOUN system | technology the illegal transfer of weapons technology to hostile countries
PREP. ~ against (often figurative) This relaxation technique can serve as an effective weapon against stress.
You can also check other dicts: weapon (English, 中文解释 ), wordnet sense, Collins Definition