(せいおん)

せいおん
noun
silent operation; low noise; quiet
1. silent operation; low noise; quiet
Describes equipment, devices, or environments designed to produce minimal noise. Commonly used as a modifier in product descriptions and specifications.
静音(せいおん)キーボードを()った。
I bought a silent keyboard.
この扇風機(せんぷうき)静音(せいおん)設計(せっけい)寝室(しんしつ)にぴったりだ。
This fan has a quiet design and is perfect for the bedroom.
静音(せいおん)モードに()()えると、動作音(どうさおん)がほとんど()こえなくなる。
When you switch to silent mode, the operating noise becomes almost inaudible.

A modern, product-oriented word used primarily as a modifier to describe devices and equipment that are designed to operate quietly. Extremely common in electronics and appliance marketing.

COMMON COLLOCATIONS:

  • 静音(せいおん)キーボード: silent keyboard
  • 静音(せいおん)マウス: silent mouse
  • 静音(せいおん)設計(せっけい): quiet design
  • 静音(せいおん)モード: silent mode
  • 静音(せいおん)(せい): quietness (as a specification)
  • 静音(せいおん)性能(せいのう): noise reduction performance

USAGE:
Almost always used as a prefix modifier (before another noun). Common in product reviews, specifications, and advertisements for electronics, appliances, and office equipment. Not typically used to describe people or natural environments.

SIMILAR WORDS:

  • 消音(しょうおん): muting, silencing — focuses on eliminating sound entirely (silencer, mute button)
  • 防音(ぼうおん): soundproofing — refers to blocking sound from entering or escaping a space
  • 騒音(そうおん): noise — the opposite concept; unpleasant or disruptive sound

ETYMOLOGY:
(せい) (quiet, still) + (おん) (sound).