crook vs shepherd's crook

crook and shepherd's crook both are nouns.

Word	Noun	Adjective	Verb	Adverb
crook	Yes	No	Yes	No
shepherd's crook	Yes	No	No	No

As nouns, crook and shepherd's crook are synonyms defined as:

crook (noun)	shepherd's crook (noun)
a long staff with one end being hook shaped	a long staff with one end being hook shaped
someone who has committed a crime or has been legally convicted of a crime
a circular segment of a curve

crook (verb)	shepherd's crook (verb)
bend or cause to bend