wedge

A heel that is an extension of the sole of the shoe.

A block of wood used to prevent the sliding or rolling of a heavy object.

A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States.

Any shape that is triangular in cross section.

A diacritical mark (an inverted circumflex) placed above certain letters (such as the letter c) to indicate pronunciation.

(golf) an iron with considerable loft and a broad sole.

Something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them.

Put, fix, force, or implant.

Squeeze like a wedge into a tight space.