Having lived or existed for a relatively long time; not young or new. adjective
The old man walked slowly down the street.
This is an old house with a lot of history.
Belonging to the past; former. adjective
She found an old photograph of her grandparents.
He often reminisces about his old job.
Used to refer to something that has been in use for a long time. adjective
I need to replace my old computer.
The old car finally broke down after years of service.
Familiar through long or close association. adjective
They are old friends from college.
The song brings back old memories.
Having the characteristics or appearance traditionally associated with age. adjective
The old tree had gnarled branches.
The old book had yellowed pages.