月

yuè 月

部件是构形单位 —— 和检字用的部首、表音的声符都不是一回事。 · 4画

月 free
月 left — In body characters such as 肋 and 肌, this left-side 月 comes from 肉 (flesh), not from the moon.
月 bottom — At the bottom of body characters such as 背 and 肯, this 月 also comes from 肉 (flesh), not from the moon.
月 right — On the right in characters such as 朗 and 期, this 月 is the moon component.

康熙部首第74 部 · 4画 — 214 个康熙部首

字典把这些字归在它这一部下。这是检字约定，不代表这个字只由它构成。