bugle

Từ điển Oxford Advanced Learner 8th

bugle [bugle bugles bugled bugling] BrE [ˈbjuːɡl] NAmE [ˈbjuːɡl] noun
a musical instrument like a small ↑trumpet, used in the army for giving signals

Word Origin:
Middle English: via Old French from Latin buculus, diminutive of bos ‘ox’. The early English sense was ‘wild ox’, hence the compound bugle-horn, denoting the horn of an ox used to give signals, originally in hunting.