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to rub; to chafe
to wear out; to become worn
to lose one's innocence; to become sly
新しい靴で歩くと踵が摩れて痛くなった。
Walking in new shoes caused my heels to get rubbed and sore.
布と布が摩れる音がかすかに聞こえた。
The faint sound of fabric rubbing against fabric could be heard.
機械の部品が摩れて異常な熱を帯びていた。
Machine parts were rubbing and generating abnormal heat.