recognise vs know

recognise is not a noun while know is a noun.

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

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

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

Other hypernyms of recognise include cognise, cognize.

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

As verbs, recognise and know are synonyms defined as:

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

Other synonyms of recognise include acknowledge, recognize.

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

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