col·li·sion

/kəˈlıʒən/ noun, pl -sions [count]

: an act of colliding: such as

a : a crash in which two or more things or people hit each other

The car was destroyed in the collision.

There was nothing I could do to avoid a head-on collision. [=a crash of two vehicles that are moving directly toward each other]

— often + between or with

He was injured in a collision between a car and an SUV.

She hurt her shoulder in a collision with another player.

b : a situation in which people or groups disagree : a clash or conflict

— often + between

He reported on the latest collision between the two leaders.