"rubs" in the noun sense
1. hang-up, hitch, rub, snag
an unforeseen obstacle
2. rub, wipe
the act of rubbing or wiping
"he gave the hood a quick rub"
"rubs" in the verb sense
move over something with pressure
"rub my hands"
"rub oil into her skin"
2. rub, fray, fret, chafe, scratch
"my sweater scratches"
3. rub, scratch, itch
scrape or rub as if to relieve itching
"Don't scratch your insect bites!"
Source: WordNet® (An amazing lexical database of English)
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