It does not need to have a hyphen! :)
The term "hen house" does not require a hyphen because it is a compound noun made up of two separate words that clearly convey a specific meaning. Hyphens are typically used in compound adjectives before a noun or to prevent ambiguity, but in this case, "hen house" is straightforward. Therefore, it is correct to write it as two words without a hyphen.
No, they are two separate words.
Wide-open or Widespread, (if the hyphen makes a difference).
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
Some dictionaries list it without a hyphen, as "housesit" (and housesitter, akin to babysitter). This is likely a case of evolving usage. Many spell checkers will only accept the two-word form.
A colon is this : and a hyphen is this -
multimedia - NO hyphen
No there's not a hyphen.
hyphen
Non-breaking hyphen