Crash refers to a violent collision, usually with noise. As a noun, it refers to the collision itself (car crash) or to the noise caused by the collision (I heard a loud crash). It can also be a verb, as in: "to crash a car" (="to collide a car into something"), "to crash into a car" (="to collide with a car"). Usually, damage is implied. Wreck implies that something is destroyed or very damaged. Not necessarily through a collision. As a noun, it refers to the thing being destroyed/heavily damaged after it has been wrecked (the wreck of a ship, an emotional wreck of a man). As a verb, it refers to the act of destroying/damaging the thing (to wreck a car, to wreck someone emotionally). To collide is just to hit something else while moving. A car can collide with another car, a human can collide with a tree. As long as two things come into contact, it's technically a collision, though generally it needs to be impactful. (You wouldn't really refer to a feather landing on the floor as a collision.) The difference is in what these words imply. If you crash a car, it implies you made it collide into something in a way that was probably abrupt, noisy, and most likely left the car damaged. If you wreck a car, it implies you totally destroyed it - though not necessarily by colliding it with something else. If you just made a car collide (collided it), it might not even be very damaged, because all that is implied is that the car hit something else. Imo, there's another difference when using these words, that has to do with intent. A car can collide with or crash into another car. It can be entirely accidental. But you'd rarely see "the car wrecked the other car" or "the car crashed the other car", because it implies some kind of intent on the part of the car. Sorry if any part of this is wrong, and it would help a lot to know what context you are trying to use the words in! :)

"collide with" and "crash into" are similar e.g. A crazy driver crashed into / collided with my car this morning and caused a lot of damage. However, the damage was not too bad - he didn't wreck my car. "wreck" means to damage something so badly that it can no longer be used.

"Crash" emphasizes the noise and violence of the event. Sometimes it is just noise. Cymbals are the kind of percussion instrument that look like a pair of brass plates; we talk about cymbals crashing, even though it is not an accident and there is no damage. "Wreck" emphasizes the destruction. If a leaking ship founders and sinks slowly and gently to the bottom, it is still a "shipwreck" even if nothing hit anything and there were no loud noises. "Collide" emphasizes the idea of a pair of objects that hit each other. If the word "collide" is used, we expect two things to be mentioned somewhere. The two cars collided. Two planes had a midair collision. The bicycle collided with a utility pole. The "Titanic" collided with an iceberg.

To crash, wreck, and collide are all synonymous if you are talking about vehicle accidents. Each of these words does have secondary meanings that have nothing to do with vehicle accidents as well. Such as , Your room is a wreck (messy). Our worlds collided (came together and changed each other), He is crashing (sleeping) on my couch tonight because his wife kicked him out.