wedge

a block of wood used to prevent the sliding or rolling of a heavy object
something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
(golf) an iron with considerable loft and a broad sole
a heel that is an extension of the sole of the shoe
a diacritical mark (an inverted circumflex) placed above certain letters (such as c) to indicate pronunciation
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
squeeze like a wedge into a tight space

fix, force, or implant