Is ten year old hyphenated?

Is ten year old hyphenated?

If the phrase “year old” is used as a noun or comes before a noun, hyphenate it: My ten-year-old computer takes five minutes to boot up. That six-year-old paints like Jackson Pollock. A six-year-old doughnut is no longer edible.

Do you say 10 year old or 10 years old?

Originally Answered: Which is grammar correct in context, year old or years old? If using as the adjective of a noun (usually before the noun) it’s “year old” as in “Ten-year-old car” if stating the age of the noun (usually after the noun) it’s “years old” as in “the car is ten years old”.

Is it correct to say 10 years old?

He is 10 years old is correct. 10-year-old is attributive and must be used to describe a noun. He is a 10-year-old boy. “He is 10 years old,”, is correct.

Is it 12 year old or 12 years old?

A 12-year-old child is 12 years old. That is, when the adjectival phrase (12-year-old) comes before the noun it modifies (child), it is hyphenated, and it is unhyphenated when it comes after the noun it modifies. This is the standard practice for phrasal adjectives of all kinds, not just those relating to age.