ammunition

Từ điển Oxford Advanced Learner 8th

am·mu·ni·tion [ammunition ammunitions] BrE [ˌæmjuˈnɪʃn] NAmE [ˌæmjuˈnɪʃn] noun uncountable
1. a supply of bullets, etc. to be fired from guns
•The bandits escaped with a rifle and 120 rounds of ammunition.
2. information that can be used against another person in an argument
•The letter gave her all the ammunition she needed.
•These figures provide political ammunition to police chiefs arguing for more resources.

Word Origin:
late 16th cent.: from obsolete French amunition, alteration (by wrong division) of la munition ‘the munition’ from Latin munitio(n-) ‘fortification’, from munire ‘fortify or secure’.

Example Bank:
•They issued live ammunition to the troops.
•A few of the men had run out of ammunition.