We ask kids as young as five to understand that what look like scribbles on a page are really symbols and that these stand for sounds, which correspond to letters, which make up words, which ...

We call these letters symbols. And an element is a pure substance made from only one type of atom. And there are quite a lot of elements. There are something like 100, and each has a unique symbol ...

A stock symbol or ticker is a unique series of letters assigned to a security for trading purposes. Stocks listed on the New York Stock Exchange (NYSE) can have four or fewer letters. Nasdaq ...