三日月(みかづき) みかづき noun crescent moon nature 1. crescent moon the thin curved shape of the moon visible shortly after new moon or before the next new moon 夜(よる)空(ぞら)に三日月(みかづき)が浮(う)かんでいた。🔊 A crescent moon was floating in the night sky. 三日月(みかづき)の形(かたち)をしたイヤリングを買(か)った。🔊 I bought earrings shaped like a crescent moon. 今夜(こんや)は三日月(みかづき)がとても明(あか)るく輝(かがや)いている。🔊 Tonight the crescent moon is shining very brightly. Etymology三日(みっか) (third day) + 月(つき) (moon) → the moon on the third day of the lunar month, which appears as a thin crescent.Moon phases新月(しんげつ) (new moon)三日月(みかづき) (crescent moon)半月(はんげつ) (half moon)満月(まんげつ) (full moon)Cultural noteThe crescent moon shape is common in Japanese design, from family crests (家紋(かもん)) to traditional crafts and modern accessories. Related Words Related: 満月(まんげつ) (full moon) Related: 新月(しんげつ) (new moon) Related: 半月(はんげつ) (half moon) general Added 2026.1.26 22:58 · Revised 2026.9.2 13:01 17500/17597_mikazuki