お七夜[oshichiya] name-giving ceremony
七つ[nanatsu] seven
七つの海[nanatsunoumi] the seven seas
七屋[nanatsuya] pawnshop
七回忌[shichikaiki] seventh anniversary of a death

七角形[shichikakkei] heptagon
七曲がり[nanamagari] tortuous or spiral (path)
七月[shichigatsu] July
七賢[shichiken] the Seven Wise Men (of Confucius's Analects)

一朝一夕[icchouisseki] in a day
一朝一夕に[icchouissekini] in a day
一夕[isseki] one evening
一夕話[issekiwa] (a) short story

朝夕[asayuu] morning and evening
夕間暮れ[yuumagure] evening twilight
夕闇[yuuyami] dusk
夕映え[yuubae] sunset glow