rummy vs odd

rummy is a noun but odd is not a noun.

Word	Noun	Adjective	Verb	Adverb
rummy	Yes	Yes	No	No
odd	No	Yes	No	No

As adjectives, rummy and odd are synonyms defined as:

Other synonyms of rummy include curious, funny, peculiar, queer, rum, singular.

rummy (noun)	odd (noun)
a card game based on collecting sets and sequences; the winner is the first to meld all their cards
a chronic drinker

rummy (adjective)	odd (adjective)
beyond or deviating from the usual or expected	not divisible by two
	an indefinite quantity more than that specified
	of the remaining member of a pair
	beyond or deviating from the usual or expected
	not used up
	not easily explained