brood vs sit

brood is a noun but sit is not a noun.

Word	Noun	Adjective	Verb	Adverb
brood	Yes	No	Yes	No
sit	No	No	Yes	No

brood (noun)	sit (noun)
the young of an animal cared for at one time

brood (verb)	sit (verb)
sit on (eggs)	serve in a specific professional capacity
think moodily or anxiously about something	be in a position in which one's upper body is largely upright and supported by one's backside
be in a huff; be silent or sullen	show to a seat; assign a seat for
be in a huff and display one's displeasure	take a seat
hang over, as of something threatening, dark, or menacing	be in session
	sit and travel on the back of animal, usually while controlling its motions
	assume a posture as for artistic purposes
	work or act as a baby-sitter
	be around, often idly or without specific purpose
	be located or situated somewhere