- 1[intransitive] when a dove1 or a pigeon coos, it makes a soft low sound More Like This Animal sounds baa, caw, coo, meow, moo, neigh, oink, quack, tu-whit, tu- whoo, tweet, woofSee worksheet.
- 2[intransitive, transitive] (+ speech) to say something in a soft quiet voice, especially to somebody you love See related entries: Love Word Originverb and noun mid 17th cent.: imitative.Idioms (old-fashioned, informal) if two people who are in love bill and coo, they kiss and speak in a loving way to each other
BrE BrE//kuː//; NAmE NAmE//kuː//Verb Forms present simple I / you / we / they coo
BrE BrE//kuː//; NAmE NAmE//kuː//he / she / it coos
BrE BrE//kuːz//; NAmE NAmE//kuːz//past simple cooed
BrE BrE//kuːd//; NAmE NAmE//kuːd//past participle cooed
BrE BrE//kuːd//; NAmE NAmE//kuːd//-ing form cooing
BrE BrE//ˈkuːɪŋ//; NAmE NAmE//ˈkuːɪŋ//Love