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Definitions

capper

[kap-er] / ˈkæp ər /
NOUN
clincher
Synonyms
STRONG
closer culmination deathblow finisher
WEAK
coup de grâce crowning blow deciding moment finishing touch
NOUN
culmination
Synonyms
STRONGEST
apex climax completion pinnacle
STRONG
acme apogee consummation crown finale finish height limit maximum meridian noon payoff peak perfection summit top zenith
WEAK
all the way blow off critical mass crowning touch ne plus ultra punch line
Antonyms
STRONGEST
anticlimax nadir
STRONG
base beginning bottom introduction start
WEAK
commencement opening
NOUN
zenith
Synonyms
STRONG
acme altitude apex apogee cap capstone climax crest crown culmination elevation eminence height meridian payoff peak pinnacle roof summit tiptop topper vertex
WEAK
high noon high point
Antonyms
STRONG
base bottom depth lowness nadir start unimportance

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“This should put a capper, in our opinion, on blue-sky hopes for substantial multiple expansion,” he wrote.

From MarketWatch • Feb. 5, 2026

Johnson appeared as a sort-of doctor to help the grandfather after he finally collapses to put a nice capper on the basic, but very effective sketch.

From Los Angeles Times • Jan. 25, 2026

The capper came on Monday when Liverpool shelled out around $170 million for Alexander Isak, a 26-year-old from Sweden, signed from Newcastle, another top-five club.

From The Wall Street Journal • Sep. 2, 2025

The capper to the feud between Kendrick Lamar and Drake doesn't involve the "GNX" rapper at all.

From Salon • Jan. 16, 2025

It is amazing the many who were willing to play the part of capper in this game.

From Watch Yourself Go By by Warden, Ben W.