How many letters does the top answer for “not move; be in a resting position” have?

The most common answer is rest (4 letters).

Crossword clue: not move; be in a resting position

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

rest 4 letters wn-def

something left after other parts have been taken away