Meaning of the word "wound up" in English

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

wound up

US /ˌwaʊnd ˈʌp/
UK /ˌwaʊnd ˈʌp/

Adjective

very nervous, tense, or excited

Example:
She was all wound up before her job interview.
The children were too wound up to sleep after the party.