to have the same interests, attitudes etc as someone else:
I found I had a lot in common with these people.
four women with almost nothing in common
if objects or ideas have something in common, they share the same features:
The two games have much in common.
in the same way as someone or something else:
In common with a lot of other countries, we're in an economic recession.
a large area of open land in a town or village that people walk or play sport on: