cleaner vs char

cleaner and char both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleaner	Yes	No	No	No
char	Yes	No	Yes	No

As nouns, char is a hyponym of cleaner; that is, char is a word with a more specific, narrower meaning than cleaner:

cleaner (noun)	char (noun)
a preparation used in cleaning something	any of several small trout-like fish of the genus Salvelinus
someone whose occupation is cleaning	a human female employed to do housework
the operator of dry-cleaning establishment	a charred substance

cleaner (verb)	char (verb)
	burn slightly and superficially so as to affect color
	burn to charcoal