also: しいん
adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'
silently; dead quiet
Onomatopoeic word describing a sudden, complete silence, often when a room falls quiet or after a joke falls flat.
教室がシーンとなった。
The classroom fell completely silent.
彼の冗談に
Nobody laughed at his joke, and an awkward silence filled the room.