1. (n.) One who finishes, puts an end to, completes, or perfects; esp. used in the trades, as in hatting, weaving, etc., for the workman who gives a finishing touch to the work, or any part of it, and brings it to perfection.

2. (n.) Something that gives the finishing touch to, or settles, anything.

KO capstone climax clincher conclusive argument copestone crown crusher cutter death stroke deathblow end-all ender final stroke final touch finishing stroke floorer garmentmaker garmentworker kayo kayo punch knockdown argument knockout knockout blow last dab last stroke last touch needleworker quietus settler sockdolager stitcher stopper