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Crossword clue: to multiply by four; to increase fourfold; to double; to double twice. a. smith.

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

Possible answers

quadruple 9 letters web-def

increase fourfold

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Related clues

a quantity that is four times as great as another four times as great or many To be multiplied by four; to increase fourfold; to become four times as much.