booby vs pinhead

booby and pinhead both are nouns.

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

As nouns, booby and pinhead are synonyms defined as:

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

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