WordNet sense 1 (any shape that is triangular in cross section):

cuneus, wedge shape

WordNet sense 2 (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):

bomber, grinder, hero, hoagie, hoagy, sub, submarine, torpedo, zep, Cuban sandwich, hero sandwich, Italian sandwich, submarine sandwich

WordNet sense 3 (a diacritical mark (an inverted circumflex) placed above certain letters (such as the letter c) to indicate pronunciation):

hacek

WordNet sense 4 (a heel that is an extension of the sole of the shoe):

wedge heel

WordNet sense 5 (a block of wood used to prevent the sliding or rolling of a heavy object):

chock

WordNet sense 6 (fix, force, or implant):

deposit, lodge, stick

WordNet sense 7 (squeeze like a wedge into a tight space):

force, squeeze