What is the meaning of Rub?

An act of rubbing.

A difficulty or problem.

A quip or sarcastic remark.

In the game of crown green bowls, any obstacle by which a bowl is diverted from its normal course.

Any substance designed to be applied by rubbing.

A mixture of spices applied to meat before it is barbecued.

A loan.

To move (one object) while maintaining contact with another object over some area, with pressure and friction.

To be rubbed against something.

To spread a substance thinly over; to smear.

To move or pass with difficulty.

To scour; to burnish; to polish; to brighten; to cleanse; often with up or over.

To hinder; to cross; to thwart.

To touch the jack with the bowl.

back (the reverse side)

the other (often negative) aspect of a situation

second-person singular imperative of rubaś

rub

to rub

rim

edge, brink

rib

Source: wiktionary.org