COUNTERSINK

Definition:

1. [noun] 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
   
   
2. [noun] a bit for enlarging the upper part of a hole
   Synonyms: counterbore, bit
   
   
3. [verb] insert (a nail or screw below the surface, as into a countersink)
   Synonyms: set
   
   

Synonyms:

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