(~d)
1.
If there is an ~ of ideas or information among a group of people, each person talks about his or her ideas or gives information to the others.
What made the meeting exciting was the ~ of ideas from different disciplines...
= exchange
N-VAR: with supp, usu N of n
2.
If you ~ one thing with another, or you ~ two things, each thing takes the place of the other or is exchanged for the other. You can also say that two things ~.
She likes to ~ her furnishings at home with the stock in her shop...
Your task is to ~ words so that the sentence makes sense.
...the point where the illusions of the stage and reality begin to ~.
V-RECIP: V n with n, V pl-n, pl-n V, also V with n
•
Interchange is also a noun.
...the ~ of matter and energy at atomic or sub-atomic levels.
N-VAR: oft N of n
3.
An ~ on a motorway, freeway, or road is a place where it joins a main road or another motorway or freeway.
= junction
N-COUNT: usu n N