Hyphen
Alternatively
referred to as a dash, minus sign, subtract, or negative; the hyphen ( - ) is a punctuation mark commonly found on the underscore key next to the "0" computer keyboard key. In computers, the hyphen is commonly used in computer programming and mathematics to subtract one number from another.
Below are some examples of a hyphen is used.
Used in a math formula
2 - 1 = 1
Used in a word
In many word processors an optional hyphen or Hyphenation is automatically inserted when a word is cut off by the program because it has reached the end of the line.
Words with hyphens are used in some compound words to make the word easier to read and help clarify words that are used together. Here are some examples of words with hyphens: to-do, merry-go-round, high-risk, T-shirt, and sixty-six.
Also see: Em dash, En dash, Hyphenation, Keyboard definitions, Plus