The general action of gaining access to an item that belongs to another person, whether it be granted from the owner for a period (borrowing), gaining possession of the item from the original owner (gifting) or the unconcentual taking of property (colloquial stealing).
Stealing/Steal/Stole
Hey Bruski, mind if I steal a pretzel?
This shirt? Brochacho let me steal it after I asked where she got it.
Yeah, this is the declaration of independence Bruno Mars, thanks for noticing, I stole it and am now on the run from the Feds.