Meaning of the word repine in English

What does repine mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

repine

US /rɪˈpaɪn/
UK /rɪˈpaɪn/

Verb

to feel or express discontent; fret

Example:
She would often repine about her lack of opportunities.
There's no need to repine over spilled milk.