Old, ancient, venerable, antique, antiquated, archaic, obsolete mean having come into existence or use in the more or less distant past. Old may apply to either actual or merely relative length of existence. That's an old joke - i've heard it about a thousand times.
I think this cheese is old, judging by the smell of it. Old is the most general term: An old person has lived long, nearly to the end of the usual period of life.
There are eight meanings listed in oed's entry for the noun old, two of which are labelled obsolete. If you were looking for the dexys midnight runners song called old, see here."old" is a song recorded by american heavy metal band machine head. See examples of old used in a sentence.
Definition of old adjective in oxford advanced learner's dictionary.