WordWeb Online

1. Occurring or operating at the same time
   "a series of coinciding events"
   - coincident, coincidental, concurrent, co-occurrent, cooccurring, simultaneous

1. Go with, fall together
   - co-occur, cooccur
    
2. Happen simultaneously
   "The two events coincided"
   - concur
    
3. Be the same
   "our views on this matter coincided"

See also: coincidence, coincident, synchronal, synchronic, synchronous

Type of: agree, check, coexist, come about, correspond, fall out, fit, gibe, go on, hap, happen, jibe, marry, marry up, match, occur, pass, pass off, take place, tally