noun, noun which may take the genitive case particle 'no'
person around fifty years old
Abbreviation of 'around fifty'. Used to describe someone in their early to mid-fifties, often in lifestyle or demographic contexts. Compare with アラフォー (around forty).
See also: アラフォー
アラフィフの女性向けのファッション雑誌が増えている。
Fashion magazines targeting women around fifty are increasing.
彼はアラフィフだけど
He's around fifty, but he's still full of energy.