No you don't.
In a normal keyboard, you find the underscore on the same key as the hyphen, but you have to shift (as you would to capitalize) in order to get it. It's on the same line of keys as the numerals.
You say "A hyphen" because the sound of the letter "H" at the beginning of the word "hyphen" is pronounced, making it a consonant sound.
No, it does not have a hyphen.
It Is A Special Hyphen
A colon is this : and a hyphen is this -
multimedia - NO hyphen
hyphen
No there's not a hyphen.
It does not need to have a hyphen! :)
Non-breaking hyphen
does time-line have a hyphen