urb ( synonym found)
Definition of urb:

°An act of rubbing.
"Give that lamp a good rub and see if any genies come out"
°A difficulty or problem.
"Therein lies the rub."
°To move one object while maintaining contact with another object over some area.
°To rub something against.
Definition of urb:

°An act of rubbing.
"Give that lamp a good rub and see if any genies come out"
°A difficulty or problem.
"Therein lies the rub."
°To move one object while maintaining contact with another object over some area.
°To rub something against.
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