Definition of countersink

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  • countersink is a valid Scrabble US word with a point value of 17
  • countersink is a valid Scrabble UK word with a point value of 17
  • countersink is a valid Words with friends word with a point value of 21

Definition of countersink

  • insert (a nail or screw below the surface, as into a countersink) (verb)

    Synonyms

    1. set
  • a bit for enlarging the upper part of a hole (noun)

    Synonyms

    1. counterbore
    2. countersink bit
  • a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface (noun)

See definition of countersink in Merriam Webster