crook vs bight

crook and bight both are nouns.

Word	Noun	Adjective	Verb	Adverb
crook	Yes	No	Yes	No
bight	Yes	No	Yes	No

As nouns, bight is a hyponym of crook; that is, bight is a word with a more specific, narrower meaning than crook:

crook (noun)	bight (noun)
a long staff with one end being hook shaped	the middle part of a slack rope (as distinguished from its ends)
someone who has committed a crime or has been legally convicted of a crime	a broad bay formed by an indentation in the shoreline
a circular segment of a curve	a bend or curve (especially in a coastline)
	a loop in a rope

crook (verb)	bight (verb)
bend or cause to bend	fasten with a bight