Dictionary

adjective

Definitions

1. Of an object, concept, relationship, etc., having existed for a relatively long period of time.

   Example: an old abandoned building;  an old friend

2. Having been used and thus no longer new or unused.

   Example: I find that an old toothbrush is good to clean the keyboard with.

3. Having existed or lived for the specified time.

   Example: How old are they? She’s five years old and he's seven. We also have a young teen and a two-year-old child.

4. (heading) Of an earlier time.