fireworks UK /ˈfaɪ̯.ə.wɜːks/US /ˈfaɪ̯.ɚ.wɝks/noun 2phrases 1 noun[plural only]2 •An event or a display where fireworks are set off.5000 Marrons in Battery, which continue firing to the End of the Fireworks. — 1749 •(figurative) A boisterous or violent event or situation.I left the room after John came home drunk but before the fireworks went off. Phrases with fireworks get to the fireworks factoryTo reach the most interesting, eventful or important part of a storyline.