—v.t. 1. to perform the ceremony of (marriage).
2. to hold or perform (ceremonies, rites, etc.) in due manner.
3. to observe or commemorate with rites or ceremonies: to solemnize an occasion with prayer. 4. to go through with ceremony or formality.
5. to render solemn, serious, or grave; dignify.
—v.i. to become solemn; conduct oneself with solemnity. Also,esp. Brit.,sol'em•nise".