A capper is defined as someone who puts tops or lids on something.
(noun)An example of a capper is a person working at a beer bottling plant.
The definition of a capper is an award or achievement that tops whatever came before.
(noun)An example of a capper is getting a new client and then getting a promotion.
See capper in Webster's New World College Dictionary
noun
See capper in American Heritage Dictionary 4
noun
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