"When I was 25yrs old, 25years-old / 25 year-old I entered a university building at night through an open window with the intent of burgling it as I wanted to get myself sent to prison". What is the correct way to insert my age in this sentence please? Thank you in advance

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    When I was 25 years old (no dash needed), When I was 25, and At 25 all work. If you want When I was a 25-year-old, the dashes come in. Commented Apr 5, 2020 at 19:21

1 Answer 1


You should always hyphenate something like 25-year-old.


When I turned Twenty five...

Example, She looks like an 18-year-old, you're using that hyphenated phrase with the indefinite article in a pronominal sense. It really means "an 18-year-old girl, so it's like a substitute pronoun.

Visit this for more info: https://www.english-to-go.info/english-grammar-tips-year-or-years/

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