Noun

• S: (n) friction, rubbing (the resistance encountered when one body is moved in contact with another)
• S: (n) rubbing (representation consisting of a copy (as of an engraving) made by laying paper over something and rubbing it with charcoal)
• S: (n) friction, detrition, rubbing (effort expended in moving one object over another with pressure)

Verb

• S: (v) rub (move over something with pressure) "rub my hands"; "rub oil into her skin"
• S: (v) rub, fray, fret, chafe, scratch (cause friction) "my sweater scratches"
• S: (v) rub, scratch, itch (scrape or rub as if to relieve itching) "Don't scratch your insect bites!"