From King Dictionary of Contemporary Englishcollisioncol‧li‧sion /kəˈlɪʒən/ ●●○ noun [countable, uncountable] 1 ACCIDENTan accident in which two or more people or vehicles hit each other while moving in different directionscollidecollision with The school bus was involved in a collision with a truck. Two people were killed in a head-on collision (=between two vehicles that are moving directly towards each other) on highway 218.see thesaurus at accident2 DISAGREEa strong disagreement between two people or groupscollision between a collision between the two countries over fishing rights3 be on a collision course
Examples from the Corpus
collisionA school bus has been involved in a collision with a fuel tanker.The risk of a mid-air collision over central London has increased dramatically.News of the mid-air collision reached the papers quickly.About two-thirds of all collisions at state public crossings actually occur where everything is functioning properly.Whiplash, a neck injury, is a result of automobile collisions.At such speeds, they need accurate sense organs if they are to avoid damaging collisions.Those who drive the road regularly say their biggest fear is a head-on collision.These airbags are designed to protect car drivers in head-on collisions.To carry out the same thing with battleships was a very different matter and the collision the officers had foreseen duly occurred.But in the collision course, the church has some mighty weapons.This placed an important limit on the amount of energy that could be emitted in the collision.In 1994, they had to withdraw after Roca broke her wrist in a fluke warmup collision.head-on collisionA 3-month-old boy died after a head-on collision near Burford.She was killed in a head-on collision on Highway 218.On a treacherous curve, both vehicles went out of control and met in a head-on collision.He saw no prospect of avoiding for long a head-on collision.The Budget also marked a head-on collision between Conservative Party election promises and the real world, however.There was evidentially speaking a head-on collision between the appellant and the principal prosecution witness.A head-on collision with a pair of black salt-stained leather boots.Those who travel the road regularly say their biggest fear is head-on collisions.They included provisions designed to prevent head-on collisions, like those at Bellgrove and later at Newton.collision betweena collision between police and demonstrators
From King Business Dictionarycollisioncol‧li‧sion /kəˈlɪʒən/ noun [countable, uncountable]1INSURANCEwhen a vehicle hits another vehicle or object, causing damageHis car was in collision with another vehicle.All aircraft are now fitted with collision-avoidance equipment.2on a collision course (with) if two groups are on a collision course, they are very likely to have a serious disagreement at some time in the futureThis latest announcement may put the nation’s largest cable operators on a collision course with telephone companies.Origin collision (1400-1500) Latin collisio, from collidere; COLLIDE