/əˈbaʊt/ preposition
concerning or relating to a particular subject
I'm reading a book about American politics.
He lied about his age in order to get into the army.
PHRASES
all about sth (=all the details relating to something)
Naturally, my mother wanted to know all about what I was doing.
It’s about... spoken (=used when saying why you wanted to talk to someone)
It’s about Tommy. He’s been sick again.
About that... spoken (=used when you want to ask someone about something)
About that car of yours. How much are you selling it for?
sb said something about...
spoken She said something about meeting a friend in town.