Solemnize/ˈsɑːləmnaɪz/ Definition 1 of 2Pro Tip 1/3Wedding Focus Use 'solemnize' mainly when discussing the official recognition or celebration of a marriage. The couple had a judge solemnize their wedding outdoors. Pro Tip 2/3Ceremonial Importance 'Solemnize' implies a level of seriousness and formality within an event. They chose to solemnize their partnership with gravity and respect. Pro Tip 3/3Not for Informal Avoid using 'solemnize' for casual or informal occasions; it suggests a dignified procedure. The mayor will solemnize the opening of the new library.