knock rummy vs gin rummy

knock rummy and gin rummy both are nouns.

Word	Noun	Adjective	Verb	Adverb
knock rummy	Yes	No	No	No
gin rummy	Yes	No	No	No

As nouns, knock rummy and gin rummy are synonyms defined as:

knock rummy and gin rummy: a form of rummy in which a player can go out if the cards remaining in their hand total less than 10 points

Other synonyms of knock rummy include gin.

knock rummy (noun)	gin rummy (noun)
a form of rummy in which a player can go out if the cards remaining in their hand total less than 10 points	a form of rummy in which a player can go out if the cards remaining in their hand total less than 10 points