秋あき深ふかしじ字FuriganaMeanings1noundeep autumn; height of autumnA classical-sounding noun that evokes the peak of autumn, when the season is fully felt. Often used in poetic or literary contexts.秋あき深ふかし、紅こう葉ようが山やまを彩いろどる。In deep autumn, the autumn leaves color the mountains.この句くは「秋あき深ふかし」で始はじまる。This haiku begins with 'akifukashi'.