K vs word

K and word both are nouns.

Word	Noun	Adjective	Verb	Adverb
K	Yes	No	No	No
word	Yes	No	Yes	No

K (noun)	word (noun)
street names for ketamine	a unit of language that native speakers can identify
the 11th letter of the Roman alphabet	a promise
a unit of information equal to 1024 bytes	information about recent and important events
a unit of information equal to 1000 bytes	a brief statement
the basic unit of thermodynamic temperature adopted under the Systeme International d'Unites	an exchange of views on some topic
the cardinal number that is the product of 10 and 100	a secret word or phrase known only to a restricted group
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite	a verbal command for action
	a string of bits stored in computer memory

K (verb)	word (verb)
	put into words or an expression