know vs recognize

know is a noun but recognize is not a noun.

Word	Noun	Adjective	Verb	Adverb
know	Yes	No	Yes	No
recognize	No	No	Yes	No

As verbs, recognize is a hyponym of know; that is, recognize is a word with a more specific, narrower meaning than know:

know: be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about
recognize: be fully aware or cognizant of

Other hyponyms of know include keep track, agnise, agnize, realise, realize, recognise.

As verbs, know and recognize are synonyms defined as:

know and recognize: accept (someone) to be what is claimed or accept his power and authority

Other synonyms of know include acknowledge, recognise.

As verbs, recognize is a hypernym of know; that is, recognize is a word with a broader meaning than know:

Other hypernyms of know include agnise, agnize, realise, realize, recognise.

know (noun)	recognize (noun)
the fact of being aware of information that is known to few people

know (verb)	recognize (verb)
be familiar or acquainted with a person or an object	perceive to be the same
be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about	be fully aware or cognizant of
know how to do or perform something	accept (someone) to be what is claimed or accept his power and authority
have firsthand knowledge of states, situations, emotions, or sensations	express obligation, thanks, or gratitude for
accept (someone) to be what is claimed or accept his power and authority	express greetings upon meeting someone
know the nature or character of	detect with the senses
be able to distinguish, recognize as being different	grant credentials to
perceive as familiar	show approval or appreciation of
have fixed in the mind	exhibit recognition for (an antigen or a substrate)
have sexual intercourse with