finishing nail

American  

noun

1. a slender nail with a small globular head, used for finish work, being driven to slightly beneath the surface and covered with putty or the like.

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Example Sentences

The hit gave the Yankees a 5-0 lead and represented a finishing nail in the coffin of the A’s, who were unable to regain momentum and eventually fell 7-2.

From Reuters

To hang your wreath, tie fishing line to the form and loop over a galvanized finishing nail driven into the top of the window frame.

From Southern Living

Before the last finishing nail is driven and countersunk, Judith has earned the admiration and respect of the crew by swinging her own hammer.

From Time Magazine Archive