jackstones vs jacks

jackstones and jacks both are nouns.

Word	Noun	Adjective	Verb	Adverb
jackstones	Yes	No	No	No
jacks	Yes	No	No	No

As nouns, jackstones and jacks are synonyms defined as:

jackstones and jacks: a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball

Other synonyms of jackstones include knucklebones.

jackstones (noun)	jacks (noun)
a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball	a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball
game equipment consisting of one of several small six-pointed metal pieces that are picked up while bouncing a ball in the game of jacks