How many letters does the top answer for “to pass over, away, or off.” have?

The most common answer is overpass (8 letters).

Crossword clue: to pass over, away, or off.

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

overpass 8 letters web-def

bridge formed by the upper level of a crossing of two highways at different levels

to pass by; to pass away. 67% similar → transpass

plucked off or away. 50% similar → decerpt

to pass off in vapor. 50% similar → vaporize