|
Từ điển Oxford Learners Wordfinder Dictionary
warning signal
an automatic signal (usually a sound) warning of danger • Syn: alarm, alert, alarum • Derivationally related forms: alert (for: alert) • Hypernyms: signal, signaling, sign • Hyponyms: torpedo, air alert, burglar alarm, fire alarm, foghorn, fogsignal, horn, red flag, siren, tocsin, alarm bell
|
|
|
|