How many letters does the top answer for “a second or new survey.” have?

The most common answer is resurvey (8 letters).

Crossword clue: a second or new survey.

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

resurvey 8 letters web-def

a new survey or study

a new survey or study 50% similar → resurvey

a second or a new apportionment. 50% similar → reapportionment

a second or new valuation. 50% similar → revaluation