Verb
To become happier.
Usage- especially
- Intransitive
- as "chirk up"
To make happier.
Usage- especially
- Transitive
- as "chirk up"
To make the sound of a bird; to chirp.
Adjective
lively; cheerful; in good spirits
Usage- New-England
- US usage
- Colloquial
Verb
make a shrill creaking, squeaking, or noise, as of a door, mouse, or bird