WordWeb Online

1. Observe or perform with dignity or gravity
   "The King solemnized this day of mourning";
   - solemnise [Brit]
    
2. Perform (the wedding ceremony) with proper ceremonies
   - solemnise [Brit]
    
3. Make solemn and grave
   "This ceremony solemnized our hearts";
   - solemnise [Brit]

Derived forms: solemnized, solemnizes, solemnizing

Type of: alter, celebrate, change, keep, marry, modify, observe, splice, tie, wed