It depends on how it is used. When it comes before a noun and acts as an adjective modifying that noun, it is hyphenated: We expect the holiday party to be a well-attended event.
However, when it is used with a linking verb and does not come before a noun (that is, when it is used as a predicate adjective), it is not hyphenated: The free outdoor concerts were typically well attended.
yes
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
The word well-being is 2 words, usually hyphenated.
All-consuming is hyphenated
No, "homework" shouldn't be hyphenated.
Yes it should be hyphenated.
No. Well above is not hyphenated.
No, well above average is not hyphenated.
Well-to-do is a hyphenated word. The direction west-northwest is hyphenated.
It should be hyphenated.
No, "well versed" is not hyphenated when used as a phrase, such as in "She is well versed in the subject." However, when used as a compound adjective before a noun, it is often hyphenated as "well-versed," for example, "He is a well-versed expert."
Yes it is, if it precedes the noun, as in "a well-known actress." If it follows the noun, as in "the actress is well known," it is not hyphenated.
Yes, "well-documented" is hyphenated when used as a compound adjective before a noun. For example, you would say "a well-documented study." However, when used after the noun, it is typically not hyphenated, as in "The study is well documented."
To-night At a certain moment in time "well-come" used to be hyphenated.
No, "well mannered" is not typically hyphenated. It is generally written as two separate words, especially when used as an adjective after a noun (e.g., "a well mannered child"). However, it can be hyphenated as "well-mannered" when used directly before a noun (e.g., "a well-mannered child").
well-meant
No, "well known" is not a hyphenated word. It is typically written as two separate words when used as an adjective following a noun (e.g., "a well known author"). However, when it appears before a noun, it is often hyphenated as "well-known" (e.g., "a well-known author").