Meaning

noun any shape that is triangular in cross section

noun 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 U

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

originFrom Middle English wegge (“wedge”), from Old English weċġ (“wedge”), from Proto-West Germanic *wagi, from Proto-Germanic *wagjaz.

Etymology from Wiktionary, CC BY-SA 3.0