From Longman Dictionary of Contemporary Englishbomb scareˈbomb scare noun [countable] PMWSCPwhen people have to be moved out of a building because there may be a bomb there a bomb scare in Central London
Examples from the Corpus
bomb scare• The previous day also the factory was evacuated after a bomb scare.• Apparently there had been a bomb scare recently.• Cross-channel ferries held up by a bomb scare ...• Following the find, the centre was evacuated again because of a bomb scare which police believe was a hoax.• She says that they were told that it was a bomb scare.• No, not the usual boring bomb scare, but a cultural occasion of enormous significance. 