CALCULATOR /kæl.kjə.leɪ.təɹ/ ► audio Scrabble 14 Words With Friends 19 Definition noun an expert at calculation (or at operating calculating machines). — synonyms: reckoner, figurer, estimator, computer noun a small machine that is used for mathematical calculations. — synonyms: calculating_machine See all 143 words you can make from CALCULATOR → 10-letter words Words starting with C Words ending with R ← Unscramble different letters