遺恨

いこん

grudge, ill will, enmity

十年

じゅうねん

ten years, decade

意趣遺恨

いしゅいこん

grudge, spite, malice, rancor

遺恨試合

いこんしあい

grudge match

十箇年

じゅうかねん

decennial

数十年

すうじゅうねん

few decades, many decades, several decades

遺族年金

いぞくねんきん

survivor's pension or annuity

十年一昔

じゅうねんひとむかし じゅうねんいちむかし

expression suggesting that the pace of change makes ten years back seem like ancient history

十年一日

じゅうねんいちじつ じゅうねんいちにち

without intermission for ten (long) years, with constancy of purpose for ten (long) years, in the same old rut for years on end

十年選手

じゅうねんせんしゅ

veteran player; experienced player

五十年祭

ごじゅうねんさい

jubilee, semicentennial

幕内十年

まくうちじゅうねん

10 year career in the highest division is enough for anyone

三十年戦争

さんじゅうねんせんそう

the Thirty Years' War

十五年戦争

じゅうごねんせんそう

Fifteen Years' War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)

多恨

たこん

many troubles or sadnesses or vexations or grudges

宿恨

しゅくこん

old grudge, old score

私恨

しこん

personal grudge

悔恨

かいこん

regret

恨事

こんじ

regrettable matter