about

/əˈbaʊt/ preposition

Definition

SUBJECT › relating to a particular subject or person: a book about the Spanish Civil War What was she talking about?

DIRECTION UK (US around) › to or in different parts of a place, often without purpose or order: They were creeping about the garden. We heard someone moving about outside.

what/how about ...? › used to make a suggestion: How about France for a holiday? › used to ask for someone's opinion on a particular subject: What about Ann - is she nice?

(Definition of about preposition from the Cambridge Learner's Dictionary © Cambridge University Press)