Definition of bar:
a solid, more or less rigid object with a uniform cross-section
smaller than its length; a solid metal object with uniform (round
) cross-section, whose smallest dimension is .25 inch or greater (US), a piece of thinner material being called a strip
"ancient Sparta used iron bars instead of handy coins in more valuable alloi, to physically disencourage the use of money"
"I couldn't get into the nightclub because I had been barred"
"he invited everyone to his wedding bar his ex-wife."