Over the moon
/ˈəʊvə ðə muːn/informalUK
What does “Over the moon” mean?
Over the moon means extremely happy about something
Being over the moon means being delighted, not just satisfied. Getting the job, welcoming a baby or finding a lost pet could prompt it.
People often say they are “over the moon about” some news or “over the moon with” a result. It sounds warm and enthusiastic.
When do people say it?
Use it for delighted reactions to good news, especially in British English.
“We were over the moon when our missing cat came home.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in UK.
Where does it come from?
The image puts someone so high with happiness that they are above the moon.
Origin confidence: Disputed; treat with caution
How do you say “Over the moon” in other languages?
Related idioms
- On cloud nine, Extremely happy or delighted
Last updated 2026-09-19