一発
Meanings
one shot; one round; one explosion
Counts a single discharge of a firearm, a single explosion, or a single charge of ammunition.
The criminal fired only one shot.
The bomb destroyed the building with one explosion.
one blow; one punch; one hit
Refers to a single strike, punch, or hit, often in fighting or sports.
He knocked down his opponent with one punch.
Baseball term for a home run; often used in the phrase 一発を放つ.
The cleanup hitter hit a home run and decided the game.
one try; one attempt; single shot
Used for doing something in a single attempt, often with the nuance of giving it one shot or trying once. Can be used adverbially as 一発で.
I passed the exam on my first try.
We can solve this problem in one go.
ippatsu (mahjong)
Mahjong term: winning on the first go-around after declaring rīchi. A specific yaku.
See also: リーチ
I won with an ippatsu after declaring rīchi.
ippatsu (karuta)
Abbreviation of 送り一発; in competitive karuta, taking a card immediately after sending it. Rare outside the game context.
See also: 送り一発
Okuri-ippatsu is an advanced technique in competitive karuta.
Usage patterns
- 〈相手〉に一発を放つto hit a home run (off a pitcher)
He hit a go-ahead home run.
- 一発で〈動詞〉to do something successfully on the very first try
He passed the exam on his first try.
- 〈相手〉に一発食らわすto land a punch on someone
He landed a punch on his opponent.
- 一発当てるto score a big success or windfall in one go
He struck it rich with one big business success.
Expressions
- 一発かますland a punch; hit someone once · intimidate; put the frighteners on