How many letters does the top answer for “another word for jacks” have?

The most common answer is jackstones (10 letters).

Crossword clue: another word for jacks

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

jackstones 10 letters gen-syn

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

knucklebones 12 letters gen-syn

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

another word for jack 100% similar → jacklight

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase