all it means is that there is a dash between two names eg: Mr. John Piggett-Smith or Mrs. Jane Lewis-Austin
No.
Yes, "highly-regulated" is hyphenated.
The term 'hypenated' is not biblical.
No, it is never hypenated
Eye-catching is hyphenated.
Yes, "pre-school" is a hyphenated word.
at-risk is hypenated because the pronoun at cannot stand alone.
Nonmetal is typically written as one word.
It is one word - update.
No, thirty one is two words or a hypenated word, thirty-one.
Yes, the term "postbaccalaureate" is typically written as one word without a hyphen.
You can write your name on any piece of paper.