sound of falling rain

(phonetics) sonority

to be heard / sound, be taken as (give someone a certain impression from hearing) / to be widely known; to be famous / to be audible

to broaden; to become wide / to develop; to progress; to improve / (of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever

to open / to make (a hole)

rain, rainfall / a rainy weather / (figuratively) something falling like rain

(Internet slang, dated) Windows (an operating system)

window / (regional, dialect, Etchū region) a deep gap in a mountain ridge (so called for the way the wind blows through, like a window)

window

sound; echo; voice