Definition of tach

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  • tach is a valid Scrabble US word with a point value of 9
  • tach is a valid Scrabble UK word with a point value of 9
  • tach is a valid Words with friends word with a point value of 9

Definition of tach

  • measuring instrument for indicating speed of rotation (noun)

    Synonyms

    1. tachometer

See definition of tach in Merriam Webster