就寝|しゅうしんshuushin[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbgoing to bed; retiring (for the night)
    7時じに鳴なるように目覚めざましを掛かけた後あとで、彼女かのじょは就寝しゅうしんした。↗
    She went to bed, having set the alarm for seven.
Conjugation
Dictionary form就寝する(しゅうしんする)
Polite (masu)就寝します(しゅうしんします)
Negative (nai)就寝しない(しゅうしんしない)
polite (masen)就寝しません(しゅうしんしません)
classical zu / nu就寝せず・就寝せぬ(しゅうしんせず・しゅうしんせぬ)
Past (ta)就寝した(しゅうしんした)
polite (mashita)就寝しました(しゅうしんしました)
Past negative (nakatta)就寝しなかった(しゅうしんしなかった)
polite (masen deshita)就寝しませんでした(しゅうしんしませんでした)
Te form就寝して(しゅうしんして)
Potential就寝できる(しゅうしんできる)
Passive就寝される(しゅうしんされる)
Causative就寝させる(しゅうしんさせる)
Causative passive就寝させられる(しゅうしんさせられる)
Conditional (ba)就寝すれば(しゅうしんすれば)
tara就寝したら(しゅうしんしたら)
Volitional就寝しよう(しゅうしんしよう)
polite (mashou)就寝しましょう(しゅうしんしましょう)
Imperative就寝しろ(しゅうしんしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym寝るねるNeutralEveryday verb for sleeping or lying down; the most common word in daily use. 「就寝」 is a written noun mostly seen in rules and schedules.
  • Synonym就床しゅうしょうWrittenWritten word for getting into bed to sleep; rare even in writing, seen in medical and sleep-research contexts. Almost synonymous with 「就寝」.
  • Antonym起床きしょうNeutralGetting up or rising from bed; the opposite of going to bed, so it contrasts directly with 「就寝」.
  • Antonym離床りしょうWrittenWritten, medical-flavored word for getting out of bed, also for leaving one's sickbed after recovery; the opposite of 「就寝」.

Use 「就寝」 for bedtime in rules and schedules, as in 「就寝時間」 and 「就寝前」. In everyday speech say 「寝る」; 「就床」 appears in formal writing. The opposite of going to bed is 「起床」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 休息きゅうそくのため眠ねむりにつくこと。
Kanji in this word
English equivalents
See also

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android