Etymology
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collide (v.)

"to strike together forcibly," 1620s, from Latin collidere "strike together," from assimilated form of com "with, together" (see com-) + laedere "to strike, injure by striking," which is of unknown origin. For Latin vowel change, see acquisition. Related: Collided; colliding.

updated on January 20, 2018

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Definitions of collide from WordNet

collide (v.)
be incompatible; be or come into conflict;
Synonyms: clash / jar
collide (v.)
cause to collide;
The physicists collided the particles
collide (v.)
crash together with violent impact;
The cars collided
Synonyms: clash
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.