WordWeb Online

1. Happen at the same time
   - synchronize, synchronise [Brit], contemporize
    
2. Arrange or represent events so that they co-occur
   "contemporise biblical events"
   - synchronize, synchronise [Brit], contemporize

Derived forms: contemporised, contemporising, contemporises

Type of: arrange, come about, fall out, go on, hap, happen, occur, order, pass, pass off, put, set up, take place