beak vs nib

beak and nib both are nouns.

Word	Noun	Adjective	Verb	Adverb
beak	Yes	No	Yes	No
nib	Yes	No	No	No

As nouns, beak and nib are synonyms defined as:

Other synonyms of beak include bill, neb, pecker.

beak (noun)	nib (noun)
horny projecting mouth of a bird	horny projecting mouth of a bird
beaklike mouth of animals other than birds (e.g., turtles)	the writing point of a pen
informal terms for the nose
a beaklike, tapering tip on certain plant structures

beak (verb)	nib (verb)
hit lightly with a picking motion