oldgirl
nounUK /ˈəʊld ɡɜːl/
US /ˈoʊld ɡɜːrl/
A woman who went to the same school as you, long after she left.
My mum is an old girl of the local high school.
RELATED WORDS
OTHER MEANINGS
2. An affectionate way to call an elderly woman.
The old girl next door always waves at us.
3. A familiar term for a female animal that is getting old.
The old girl has been a loyal horse for years.
4. A friendly way to address a woman you know well.
Come on, old girl, we can finish this together.