静かさ

(1)(poetic) tranquil silence; "the still of the night"

(2)穏やかな静寂

(3)the state of being silent (as when no one is speaking); "there was a shocked silence"; "he gestured for silence"

(4)静かな状況（例えば、話し声がしない状況）

(5)the absence of sound; "he needed silence in order to sleep"; "the street was quiet"

(6)音がないこと

(1)