WordWeb Online

1. The physical coming together of two or more things
   - contact, striking

1. Impinge or infringe upon
   "This impinges on my rights as an individual"
   - encroach, entrench, trench
    
2. Advance beyond the usual limit
   - encroach, infringe

See also: impingement

Type of: advance, go on, happening, march on, move on, natural event, occurrence, occurrent, pass on, progress, take advantage, trespass