WordWeb Online

1. The group action of a collection of people or animals or vehicles moving ahead in more or less regular formation
   "processions were forbidden"
    
2. (theology) the origination of the Holy Spirit at Pentecost
   "the doctrine of the procession of the Holy Spirit from the Father and the Son";
   - emanation, rise
    
3. The act of moving forward (as toward a goal)
   - progress, progression, advance, advancement, forward motion, onward motion
    
4. A number of things happening in sequence (in space or in time)

Derived forms: processions

Type of: accumulation, aggregation, assemblage, collection, group action, inception, motion, move, movement, origin, origination

Encyclopedia: Procession, Sixties band