English idiom · informal · spoken · BrE & AmE

on cloud nine: meaning and examples

on cloud nine means extremely happy, especially because something wonderful has happened.

Memory hook: You are so happy that you seem to be floating high in the clouds.

How to use “on cloud nine”

Common mistake: The fixed form is “on cloud nine”, not “in cloud nine” or “on the cloud nine”.

Learn it in context

This expression belongs to Lesson 1, where you can compare it with other idioms about feelings & emotions and practise it interactively.

Open the full lesson →

Related tools

Compare similar expressions