(~s, colliding, ~d)
1.
If two or more moving people or objects ~, they crash into one another. If a moving person or object ~s with a person or object that is not moving, they crash into them.
Two trains ~d head-on in north-eastern Germany early this morning...
Racing up the stairs, he almost ~d with Daisy...
He ~d with a pine tree near the North Gate.
V-RECIP: pl-n V, V with n, V with n (non-recip)
2.
If the aims, opinions, or interests of one person or group ~ with those of another person or group, they are very different from each other and are therefore opposed.
The aims of the negotiators in New York again seem likely to ~ with the aims of the warriors in the field...
What happens when the two interests ~ will make a fascinating spectacle.
= clash
V-RECIP: V with n, pl-n V