No it doesn't need to be hyphenated.
No, the word "middle class" is not hyphenated. It is used as a compound noun to refer to a socio-economic group between the upper and lower classes.
No it doesn't need to be hyphenated.
Yes, the term "fast-paced world" is hyphenated.
world-famous
No, "world leader" is not hyphenated. It is typically written as two separate words when used as a noun phrase. However, if used as a compound adjective before a noun, it can be hyphenated as "world-leader status."
The term "world champion" is typically not hyphenated when used as a noun, as in "He is the world champion." However, it can be hyphenated as "world-champion" when used as an adjective, for example, "She is a world-champion athlete." Therefore, the hyphenation depends on the context in which the phrase is used.
Hyphenated words that start with the letter f:father-in-lawfine-tunefirst-class decisionforty-fivefour-fifths
The noun phrase 'four week vacation' does not need to be hyphenated.
The term "upper class" typically does not require a hyphen when used as a noun or adjective in most contexts, such as "the upper class" or "upper class citizens." However, it can be hyphenated as "upper-class" when used as a compound adjective directly before a noun, for example, "upper-class families." Always consider the context to determine if hyphenation is necessary.
No, "best in class" is not hyphenated. It is typically used as a phrase to describe something that is considered the best among its peers or category. Hyphenation is not necessary in this case because the phrase does not function as a single adjective modifying a noun.
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