pigeonhole vs sort

pigeonhole and sort both are nouns.

Word	Noun	Adjective	Verb	Adverb
pigeonhole	Yes	No	Yes	No
sort	Yes	No	Yes	No

As verbs, sort is a hypernym of pigeonhole; that is, sort is a word with a broader meaning than pigeonhole:

Other hypernyms of pigeonhole include assort, class, classify, separate, sort out.

pigeonhole (noun)	sort (noun)
a small compartment	an approximate definition or example
a specific (often simplistic) category	a category of things distinguished by some common characteristic or quality
	a person of a particular character or nature
	an operation that segregates items into groups according to a specified criterion

pigeonhole (verb)	sort (verb)
treat or classify according to a mental stereotype	arrange or order by classes or categories
place into a small compartment	examine in order to test suitability