今春[konshun] this spring
昨春[sakushun] last spring
三春[sanshun] three spring months
思春期[shishunki] puberty
春たけなわ[harutakenawa] spring is in full swing

春めく[harumeku] to become spring-like
春一番[haruichiban] first storm of spring
春夏秋冬[shunkashuutou] spring, summer, autumn (fall) and winter
春画[shunga] shunga

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