bar
/bɑː//bɑɹ/noun
Definitions
A solid, more or less rigid object of metal or wood with a uniform cross-section smaller than its length.
Example: The window was protected by steel bars.
A solid metal object with uniform (round, square, hexagonal, octagonal or rectangular) cross-section; in the US its smallest dimension is 1/4 inch or greater, a piece of thinner material being called a strip.
Example: Ancient Sparta used iron bars instead of handy coins in more valuable alloy, to physically discourage the use of money.
A cuboid piece of any solid commodity.
Example: bar of chocolate
A broad shaft, or band, or stripe.
Example: a bar of colour