Solemnizations are the official ceremonies or events that make something very serious or important, like weddings or official agreements.
Solemnizations are usually happy and important events, like weddings or official ceremonies.
Examples:
The solemnization of their marriage was a beautiful ceremony.
The solemnization of the treaty marked a new era of peace.
At the solemnization, everyone was happy and clapped.
The solemnization of their friendship involved a secret handshake.
The solemnization of the contract was a grand event with lots of people.
The solemnization of their partnership was a day they would never forget.