What is the meaning of Horseshoe?

The U-shaped shoe of a horse, now typically made of metal; by extension, a representation of this used to play the game horseshoes, hung as a luck charm, etc.

The U shape of a horseshoe.

A well-developed set of triceps brachii muscles.

The symbol .

An open-faced sandwich originating from Springfield, Illinois, consisting of thick-sliced toasted bread, often Texas toast, a hamburger patty, French fries, and a cheese sauce.

To apply horseshoes to (a horse).

Source: wiktionary.org