Word familyadjectivesmokablesmokedsmokelesssmokysmokeproofsmoketightadverbsmokelesslysmokilynounsmokelessnesssmokersmokinesssmokingsmokosmoke alarmsmokeboardsmoke bombsmokeboxsmoke detectorsmokehoodsmokehousesmokescreensmoke signalsmokestacksmokestack industrysmoking gunsmoke
ˌsmoking ˈgun noun [countableC]
something that shows who is responsible for something bad or how something really happened 确凿证据
Examples from the Corpus
smoking gun• Investigators have failed to find a smoking gun to connect the mayor to the missing money.• The Internal Revenue Service thought it had a smoking gun.• Federal agents and prosecutors said they found what amounts to a smoking gun in the case.