How many letters does the top answer for “the bone in the ankle that articulates with the leg bones to form the ankle joint” have?

The most common answer is anklebone (9 letters).

Crossword clue: the bone in the ankle that articulates with the leg bones to form the ankle joint

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

anklebone 9 letters wn-def

the bone in the ankle that articulates with the leg bones to form the ankle joint

astragalus 10 letters wn-def

the bone in the ankle that articulates with the leg bones to form the ankle joint

talus 5 letters wn-def

the bone in the ankle that articulates with the leg bones to form the ankle joint