happy birthday

== English == === Pronunciation === (UK) IPA(key): /ˈhæp.i ˈbɜːθ.deɪ/ (US) IPA(key): /ˈhæp.i ˈbɝθˌdeɪ/ === Interjection === happy birthday Said or written to a person who is celebrating their birthday in order to convey the good wishes of the speaker or writer (literally, "may you have a happy birthday") Synonyms: many happy returns, many happy returns of the day ==== Derived terms ==== ==== Translations ==== === Verb === happy birthday (third-person singular simple present happy birthdays, present participle happy birthdaying, simple past and past participle happy birthdayed) (colloquial, transitive) To wish (someone) a happy birthday. ==== Translations ====