今秋[konshuu] this (next, last) autumn (fall)
三尺の秋水[sanjakunoshuusui] sharpened sword
三秋[sanshuu] three autumn months
三秋の思い[sanshuunoomoi] longing for loved ones

秋の色[akinoiro] autumnal tints
秋雨[akisame] autumn rain
秋気[shuuki] autumn air
秋口[akiguchi] beginning of autumn

素袷[suawase] wearing a kimono (or awase) without any undergarments on
初袷[hatsuawase] the first time in the year that one wears an awase kimono

秋袷[akiawase] autumn lined kimono