居眠り（いねむり、inemuri）
- dozing

The Japanese word 居眠り いねむり means "dozing," "napping," or "sleeping during the day," particularly in a situation where one is expected to be awake, such as at work, school, or on public transportation. It implies a brief period of sleep, often unintentional, and usually not a full night's sleep. It suggests a lack of alertness and may imply boredom, fatigue, or a lack of interest in the current activity.

⚫︎授業中、居眠りをしてしまいました。 Translation: I dozed off during class. ⚫︎電車の中で、ついつい居眠りをしてしまった。 Translation: I ended up dozing off on the train. ⚫︎会議中、彼の居眠りにみんなが気づいた。 Translation: Everyone noticed him dozing off during the meeting.

⚫︎居眠り is used to describe the act of falling asleep in a situation where one is expected to be awake. ⚫︎It's generally not used for a full night's sleep. ⚫︎It can be used in both formal and informal situations, though the context may change the perceived severity (e.g., more serious in a work meeting than on a train). ⚫︎The verb often describes a passive act, implying that the person did not intentionally go to sleep but rather succumbed to tiredness.

⚫︎居眠り is most commonly written in kanji and hiragana: 居眠り. ⚫︎居 (i) means "to be," "to exist," or "to stay." ⚫︎眠り (nemuri) means "sleep" or "sleeping." ⚫︎It can also be written in hiragana: いねむり. ⚫︎There are no significant variations in okurigana (the suffix hiragana). ⚫︎The verb form is 居眠りする (いねむりする) or its conjugated forms.

⚫︎うたた寝 (うたたね): Dozing off (can have a slightly more positive connotation). ⚫︎まどろみ (まどろみ): Drowsiness, a state between sleep and wakefulness (more poetic). ⚫︎寝る (ねる): To sleep (general term, not specific to 居眠り.) ⚫︎仮眠 (かみん): A nap.

⚫︎起きている (おきている): Being awake. ⚫︎覚醒している (かくせいしている): Being awake, being alert. ⚫︎活動的 (かつどうてき): Active.

彼はいつも授業中に居眠りをしているので、先生に注意された。 ・Translation: He always dozes off during class, so the teacher warned him. ・Explanation: This sentence illustrates the common usage of 居眠り to describe sleeping in an inappropriate situation.

長い会議で、彼女は疲れて居眠りをしてしまった。 ・Translation: She got tired during the long meeting and dozed off. ・Explanation: This shows 居眠り as a result of fatigue in a work-related context.

The word 居眠り is formed by combining the verb 居る (iru - to be, exist) and the noun 眠り (nemuri - sleep). The combination suggests the state of "being in sleep" or "being asleep" in a situation where you are present (or should be present).