How many letters does the top answer for “preceding all others in time or space or degree” have?

The most common answer is first (5 letters).

Crossword clue: preceding all others in time or space or degree

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

first 5 letters wn-def

preceding all others in time or space or degree

preceding all others in time 67% similar → premier, premiere