entertain vs harbor

entertain is not a noun while harbor is a noun.

Word	Noun	Adjective	Verb	Adverb
entertain	No	No	Yes	No
harbor	Yes	No	Yes	No

As verbs, entertain and harbor are synonyms defined as:

Other synonyms of entertain include bear, harbour, hold, nurse.

entertain (noun)	harbor (noun)
	a place of refuge and comfort and security
	a sheltered port where ships can take on or discharge cargo

entertain (verb)	harbor (verb)
take into consideration, have in view	maintain (a theory, thoughts, or feelings)
maintain (a theory, thoughts, or feelings)	hold back a thought or feeling about
provide entertainment for	keep in one's possession; of animals
	secretly shelter (as of fugitives or criminals)