to grow fat, to gain weight, to put on weight, to grow fertile, to be refined (palate), to be discerning (eye, ear), to become rich, to become successful
前立腺肥大症【ぜんりつせんひだいしょう】
enlargement of the prostate
肥育【ひいく】
fattening
有機肥料【ゆうきひりょう】
organic fertilizer, organic fertiliser
肥やし【こやし】
manure, night soil, dung, fertiliser, fertilizer, something that will help one develop in the future