はいせん
defeat; lost battle; losing a war
JLPT N1 Common word
Noun, Suru verb, Intransitive
敗戦はいせんのうわさが広ひろまった。
Rumors of defeat were abroad.
日本にほんは敗戦はいせん後あとソ連れんと平和条約へいわじょうやくを締結ていけつし損そこねました。
After Japan lost the war, it failed to establish a peace treaty with the Soviet Union.