ammunition
Longman Dictionary of Contemporary English 5++LDOCE 5++am·mu·ni·tion /ˌæmjəˈnɪʃən/ ●○○ noun [uncountable] 1. PMWbullets, shells (shell) etc that are fired from guns 弹药2 INFORMATIONinformation that you can use to criticize someone or win an argument against them 〔用于批评或辩论中攻击他人的〕把柄，弹药，证据give somebody ammunition/provide somebody with ammunition His mistakes provided political opponents with even more ammunition. 他的过失授给政敌更多的把柄。
Examples from the Corpus
ammunition• Preparations were made, and arms and ammunition were stolen.• The charges against Abu Bakr and 113 of his followers included murder, kidnapping and the illegal possession of arms and ammunition.• The terrorist group is believed to have significant quantities of guns, ammunition, and explosives.• Jeeps, ammunition and food fell silently to the ground.• The live ammunition that I experienced was not officially sanctioned as being hazardous enough to be included.• The soldiers kept on firing until they had no more ammunition.• They had lots of ammunition and lots of desire.• Though the Tories are less organised, they still have plenty of ammunition.• We now knew that we were trapped, with only a few rounds of ammunition left.Origin ammunition (1500-1600) Early French amunition, from munition; → MUNITIONSam·mu·ni·tion nounChineseSyllable
that from (shell) etc shells bullets, are guns fired Corpus
ammunition
am‧mu‧ni‧tion /ˌæmjəˈnɪʃən, ˌæmjʊˈnɪʃən/
noun [uncountable]1. bullets, shells (shell) etc that are fired from guns
2. information that you can use to criticize someone or win an argument against them
give somebody ammunition/provide somebody with ammunition
His mistakes provided political opponents with even more ammunition.
am‧mu‧ni‧tion /ˌæmjəˈnɪʃən, ˌæmjʊˈnɪʃən/
noun [uncountable]1. bullets, shells (shell) etc that are fired from guns2. information that you can use to criticize someone or win an argument against them
give somebody ammunition/provide somebody with ammunition