Definition of wedge:
any shape that is triangular in cross section
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
a diacritical mark (an inverted circumflex) placed above certain letters (such as the letter c) to indicate pronunciation
a heel that is an extension of the sole of the shoe
(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
a block of wood used to prevent the sliding or rolling of a heavy object
put, fix, force, or implant; "lodge a bullet in the table"; "stick your thumb in the crack"
squeeze like a wedge into a tight space; "I squeezed myself into the corner"