know vs recognise

know is a noun but recognise is not a noun.

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

As verbs, recognise is a hyponym of know; that is, recognise 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
recognise: be fully aware or cognizant of

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

As verbs, know and recognise are synonyms defined as:

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

Other synonyms of know include acknowledge, recognize.

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

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

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

know (verb)	recognise (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
have sexual intercourse with