一夜

Japanese JLPT N1 Vocabulary Japanese ★★★ 3/5 neutral いちやichiya
読み いちや
ローマ字 ichiya
漢字の分解 一 (ichi/hito) — one; 夜 (ya/yoru) — night
発音 /i.tɕi.ja/

意味

One night; a single night; overnight. Refers to the duration of a single night or events occurring within one night.

A noun that can describe a literal one-night duration or appear in set expressions such as 一夜漬け (cramming overnight) and 一夜にして (overnight; in a single night). Slightly more formal than the conversational 一晩. Used in literary and everyday contexts alike.

例文

  1. 一夜にして状況が一変した。
  2. 一夜を共に過ごした旅の仲間たちと友情が芽生えた。
  3. 試験前に一夜漬けで勉強するのは体に悪い。

使い方ガイド

場面: literary, daily life, idioms, set expressions

トーン: neutral

起源と歴史

Compound of 一 (one) and 夜 (night), a straightforward classical formation attested since the Man'yōshū era. The compound has remained stable in meaning across the centuries.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal

関連フレーズ

年度 Fiscal year; academic year; official year. A defined annual period used for administrative, educational, or financial purposes, often not aligned with the calendar year. 昭和 The Shōwa era; the imperial reign period of Emperor Hirohito, spanning 1926 to 1989. One of the longest and most historically eventful eras in Japanese history. 歴史的 Historic; historical. Describes something of great historical significance, or something related to history in general. 元号 Era name; the official name given to a reign period in the Japanese imperial system. Japan currently uses the era Reiwa, which began in 2019. 干支 The Chinese zodiac; the traditional sexagenary cycle combining the ten Heavenly Stems and twelve Earthly Branches. Also used colloquially to refer to one's zodiac animal sign. 年号 Era name; Japanese era designation. An official name given to a reign period in the traditional Japanese calendar system. 年度末 End of the fiscal year or academic year; year-end in the Japanese administrative calendar. Typically refers to late March. 戦前 Pre-war; the period before a war. In Japanese, typically refers to Japan before World War II, particularly before 1937 or 1941.
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