You need to explain what you mean by old one out.
One year old.
You say "one year old" when referring to a person's age. Saying "one years old" is grammatically incorrect.
A one human year old goldfish, is eighteen goldfish years old.
one year...
If you purchase a reconditioned bumper they want your old one in exchange. Your old one is called a core. If you don't have an old one or your old one is badly damaged they tack on a core charge.
The last one was 7 years old the new one is about a year old.
one of them was abraham and i think moses was one
one is new and one is old.
one year old
You are one year old. = Tu as un an. -OR- Vous avez un an. I am one year old. = J'ai un an.
2
If you bought it and you keep it for one year, the newspaper is one year old...