sough

v [I] n (arch or fml 古或文) (make a) murmuring or whispering sound (as of wind in trees) （发出）细小的声音（如树间风声）; （发出）瑟瑟声, 飒飒声: the sough of the wind in the chimney 烟囱里的风呼呼作响.

sorority, sorrel, sorrow, sorrowful, sorrowfully, sorrowfulness, sorry, sorry-looking, sort, sort out, sort through, sorter, sortie, sorting, SOS, sot, sottish, sotto voce, sou, souffle, sought, soul, soul brother (fem 阴性作 `soul sister), soul food, soul mate, soul music, soul-destroying, soul-searching, soul-stirring, soulful, soulfully, soulfulness, soulless, soullessly, sound, sound a warning, sound archives, sound barrier (also sonic barrier), sound effect, sound-proof,