pinhead vs booby

pinhead and booby both are nouns.

Word	Noun	Adjective	Verb	Adverb
pinhead	Yes	No	No	No
booby	Yes	No	No	No

As nouns, pinhead and booby are synonyms defined as:

Other synonyms of pinhead include boob, dope, dumbbell, dummy.

pinhead (noun)	booby (noun)
the head of a pin	small tropical gannet having a bright bill or bright feet or both
an ignorant or foolish person	an ignorant or foolish person