Hyphenating is a matter of choice and what makes a sentence clearer; rules about hyphens leave some room for a writer's own judgment. For example, the question, 'Is one half hyphenated?" could be read as, 'Is one-half hyphenated?", or 'Is one half-hyphenated....' (A half-hyphenated what?). It is an oversimplified example, but it doesn't take much to confuse. Another example, 'English language learners...'; is this people from England learning a language or learners of the English language. The use of a hyphen, makes it clear, 'English-language learners...'
The purpose of hyphenating is to overcome ambiguity.
Yes, "one-half" is hyphenated.
Yes, "granddaughter" is typically not hyphenated. It is one word that refers to the daughter of someone's son or daughter.
No, "goodbye" is not hyphenated. It is one word that is commonly used to bid farewell or say goodbye to someone.
"Reuse" is one word.
No, "starting point" is not hyphenated. It is two separate words.
"Repurpose" is one word, not hyphenated.
No
one-half
One-half is a hyphenated word. It begins with the letter O.
Fine-tune is an 8 letter hyphenated word. High-tech, half-mast, half-moon are additional hyphenated words.
It should be hyphenated if used as a noun clause, but not if used as an adjective
Yes, "half-page ad" should be hyphenated to show that "half" and "page" are acting together as a compound adjective to describe "ad."
Yes, it is a hyphenated compound half-eaten
It's Harry Potter and the Half-Blood Prince.
Yeah. Is that how much you weigh?
Typically the term for a 13-mile run is hyphenated half-marathon.
It should be hyphenated.
No it shouldn't be hyphenated. It is one word.