Here is an example of using a hyphen correctly: Justin was purpose-driven by his motivation to finish well.
"Example" is a word that begins with "ex." The prefix "ex-" in the sense of "former," takes a hyphen: ex-wife, ex-President.
No hyphen is needed for world class. World is just an adjective that describes class much like (for example) upper class, which also does not need a hyphen.
No, the correct spelling is extracurricular. Adding extra does not require a hyphen. For example, extraterrestrial is extra+terrestrial (no hyphen needed).
I'm a pre-med student at school.
a hyphen EXAmPLE: golden - ball
No. Just looked it up in a printed dictionary. In fact, no work with the 'multi' prefix uses a hyphen. For example, multilateral
Yes, you need a hyphen in "professional-quality" when it is used as a compound adjective before a noun. The hyphen clarifies that "professional" modifies "quality" and together they describe the noun that follows. For example, in "professional-quality equipment," the hyphen helps convey that the equipment meets a certain standard.
lifetime is just one word and you don't use a hyphen. (example): Hopefully my parents won't die during my lifetime.
The term "community-wide" does require a hyphen when used as a compound adjective before a noun. For example, you would say "a community-wide event." However, if it follows the noun, you would write it without the hyphen, as in "the event was community wide."
Yes, "younger-looking" should have a hyphen when used as a compound adjective before a noun. The hyphen clarifies that "younger" modifies "looking" as a single idea describing the noun that follows. For example, you would write "She has a younger-looking appearance."
A hyphen is not typically used in the word "prerequisite" itself, as it is a single, unhyphenated term. However, hyphens may be used when "prerequisite" is part of a compound adjective. For example, in the phrase "prerequisite course," no hyphen is needed, but if you were to modify it in a sentence like "This is a prerequisite-required course," a hyphen is used to connect the two words for clarity.