1. To diminish or remove by attrition or slow decay; as, to wear off the nap of cloth.
2. To pass away by degrees.
3. When the surface of something is gradually removed by friction or exposure to the elements so that what is beneath the surface is exposed, the surface wears off.
4. When the effects of drugs or alcohol gradually go away, they wear off.
5. When an emotional feeling gradually goes away, it wears off.