一いっ発ぱつ勝しょう負ぶMeaningsNoun1. contest decided by a single round (bout); contest decided by a single roll of dice; one-shot game (contest); make-or-break gameKanji used一one発let out勝win負lose to (something)Composed of一いっ発ぱつone shot; one charge; one explosion; one blow; one punch; home run; one try; one attempt; win on the first go-around after calling rīchi; ippatsu (comp. karuta); …Noun勝しょう負ぶvictory or defeat; match; contest; game; bout; showdownNoun