1
un disparo;ronda;carga
2
homerun (béisbol)
1
one shot;one charge;one explosion
2
one blow;one punch
トムは頭にきつい一発を受けた。
Tom received a heavy blow on the head.
3
home run
4
one try;one attempt
5
win on the first go-around after calling rīchi
See also:
立直 (リーチ)
6
ippatsu (comp. karuta);taking a card which is read immediately after sending it
See also:
送り一発 (おくりいっぱつ)
Other forms
1発 【いっぱつ】