age fifty; one's fifties
Refers to the age of fifty or the decade of one's fifties. Often used in literary or formal contexts.
He reached the age of fifty.
五十路の坂を越えると、体力の衰えを感じる。
Once you pass the hill of your fifties, you feel your physical strength decline.
Standard kanji spelling for the age fifty or one's fifties.
Alternate spelling; less common and may be confused with the numeral 五十 (ごじゅう).
From 五十 (いそ, 'fifty') + 路 (じ, 'road' or 'path'), literally 'the road of fifty', a poetic way to refer to the age of fifty.