chirk up vs exult

chirk up and exult both are verbs.

Word	Noun	Adjective	Verb	Adverb
chirk up	No	No	Yes	No
exult	No	No	Yes	No

As verbs, exult is a hyponym of chirk up; that is, exult is a word with a more specific, narrower meaning than chirk up:

Other hyponyms of chirk up include exuberate, jubilate, rejoice, triumph, buoy up, lighten, lighten up.

chirk up (verb)	exult (verb)
become cheerful	to express great joy
	feel extreme happiness or elation