“Big win” in Japanese
Short answer
Big win in Japanese is “大勝ち” (oogachi). Full meaning: great victory, big win, huge profit, killing.
Other ways to say “Big win” in Japanese
思わぬ幸運
omowanukouun godsend, big win
大当たり
ooatari great success, big hit, smash hit, winner; (hitting the) jackpot, big win; being right on the mark (of a prediction), being bang on, hitting the nail on the head
大当り
ooatari great success, big hit, smash hit, winner; (hitting the) jackpot, big win; being right on the mark (of a prediction), being bang on, hitting the nail on the head
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.