Last Updated:2025/11/30
(figuratively) To remain vigilant at all times, especially by remaining partially awake or sleeping only lightly so as to avoid being caught off guard.
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sleep with one eye open
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Source Word
sleep with one eye open
Verb
figuratively
Japanese Meaning
常に警戒を保ち、部分的に目を覚ました状態でいること。 / 隙を与えないように、注意深く身を守るために、浅い睡眠状態に留まること。
( present singular third-person )
( participle present )
( participle past )
( past )