finisher

• POS: Noun
• HYPHEN: fin=ish=er

CIDE DICTIONARY

finisher, 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.  [1913 Webster]

  "O prophet of glad tidings, finisher
  Of utmost hope!"  [1913 Webster]
•  Something that gives the finishing touch to, or settles, anything.  [1913 Webster]

OXFORD DICTIONARY

finisher, n.
1 a person who finishes something.
2 a worker or machine doing the last operation in manufacture.
3 colloq. a discomfiting thing, a crushing blow, etc.

THESAURUS

finisher

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