Countersink is valid Scrabble Word

Is countersink a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is countersink valid Words with Friends?
Words with Friends YES

11 letters word
17 points in Scrabble
21 points in WWF

Definitions for COUNTERSINK in dictionary:

VERB:

to make a countersink on (a hole)
enlarge and bevel the rim of (a drilled hole) so that a screw, nail, or bolt can be inserted flush with the surface
drive (a screw, nail, or bolt) into a countersunk hole
To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part; as, to countersink a hole for a screw.
To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork.
insert (a nail or screw below the surface, as into a countersink)

NOUN:

An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
A drill or cutting tool for countersinking holes.
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
a bit for enlarging the upper part of a hole

Words related to COUNTERSINK

countersank17 countersinking21 countersinks18 countersunk17

Words that contain COUNTERSINK

countersinks18 countersinking21

How to use COUNTERSINK in a sentence

The valves, C, and their seats, B, bored with a countersink bit, are plainly shown.
Lay it on the die so that it will fit nicely in the countersink and drive it through the hole by striking the punch with a hammer.
Countersink the heads of the screws so they will not be in the way of the hands when the vise is used.
Now take off the board and countersink on the back a place for the head of a coarse threaded screw.

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