- abrasion, attrition, corrasion, detrition - erosion by friction
--1 is a kind of erosion, eroding, eating away, wearing, wearing away
- grinding, abrasion, attrition, detrition - the wearing down of rock particles by friction due to water or wind or ice
--2 is a kind of friction, rubbing
- friction, detrition, rubbing - effort expended in rubbing one object against another
--3 is a kind of effort, elbow grease, exertion, travail, sweat
--3 has particulars: attrition