# happy birthday

Pronunciation: say "HAP-ee BURTH-day" US /ˈhæp.i ˈbɝθˌdeɪ/, UK /ˈhæp.i ˈbɜːθ.deɪ/

## Interjection

1. Said or written to someone who is celebrating their birthday, to convey good wishes.
   - Simple: Said or written to someone on their birthday to wish them a good day.
   - _Happy birthday, Dad! I can't believe you're sixty._
   - _She piped "Happy birthday, Maya" in pink icing across the top of the cake._

## Verb

2. To offer someone good wishes for their birthday. *(colloquial)*
   - Simple: To say happy birthday to someone.
   - _Her coworkers happy birthdayed her all morning, one desk at a time._
   - _Don't forget to happy birthday your grandmother when she calls tonight._

Source: DictionaryAI, https://dictionaryai.com/define/happy-birthday (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).