(~s)
1.
A ~ is a bicycle designed for two riders, on which one rider sits behind the other.
N-COUNT
2.
If one thing happens or is done in ~ with another thing, the two things happen at the same time.
Malcolm’s contract will run in ~ with his existing one.
PHRASE: usu PHR after v, oft PHR with n
3.
If one person does something in ~ with another person, the two people do it by working together.
He is working in ~ with officials of the Serious Fraud Office.
PHRASE: usu PHR after v, oft PHR with n