Should Year Long Be Hyphenated?

one year-long stay means one stay which lasted a year. one-year-long stay refers to a group of stays which last one year. one year long stay is incorrect because before nouns you have to use hyphens.

Is four year long hyphenated?

Sentence 6 correctly hyphenates “four-year-old” because that phrase modifies the elliptical noun “girl.” That is, although we do not see the word “girl” in the sentence, it is nonetheless part of the construction. Thus, “four-year-old” is hyphenated as a multi-word, single descriptor preceding a noun.

How do you write the year with a hyphen?

When to Hyphenate Year Old

That is, when the phrase is describing the age of a person, place, or thing, and it precedes that noun in a sentence, then it should be written as year-old. In such cases, a hyphen should also connect year old to the number that precedes it (for example, “20-year-old girl”).

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.