0 used to say that people or things are in a place together or are doing something together: --
I was with Sylvia at the time.
He lives with his grandmother.
He's impossible to work with.
Ingrid Bergman starred with Humphrey Bogart in the movie "Casablanca".
I'll be with you (= I will give you my attention) in a second.
She's staying with her parents (= at their house) for a few months.
He's been with the department (= working in it) since 2010.
1 using something: --
2 having or including something: --
They were divided into two groups, with no girls in one group and no boys in the other.
We're an international company with offices in Paris, New York, and Sydney.
He arrived in Los Angeles with nothing but the clothes he was wearing.
With love, Roberta.
With your contribution, that makes a total of £45.
3 relating to or in the case of a person or thing: --
How are things with you?
This hasn't got anything to do with you (= this is not something you should be interested in).
The government's policies have not been popular with (= among) the voters.
She talked a lot about her relationship with Charlotte.
4 used to show what is on or in something: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.