cap.per

n.（名詞）
One that caps or makes caps.
帽商或制帽商
Informal Something that surpasses or completes what has gone before; a finishing touch or finale.
【非正式用語】 頂點，極點：超過或完成在其之前已做事物的東西；最后一筆或點睛之筆
Slang One who acts as a decoy, as in a confidence game.
【俚語】 誘騙者，賭棍同伙：充當眼線的人，如在一場騙局中