Definitions

1. verb

to give formal or official recognition to a marriage, or to make a solemn declaration or affirmation

“The couple decided to solemnise their wedding in a small ceremony with close family and friends.”

2. verb (transitive)

to make (something) solemn or formal

“The judge solemnised the court with a powerful speech before the trial began.”

3. verb (intransitive)

to make a solemn declaration or affirmation

“The witness solemnised to tell the truth in court.”