What is Celebration Of Marriage?

Legal Definition
The formal act by which a man and woman take each other for husband and wife, according to law; the solemnization of a marriage. The term is usually applied to a marriage ceremony attended with ecelesiastical functions. See Pearson v. Howey, 11 N. J. Law, 19.
-- Black's Law Dictionary
Legal Definition
The solemnization or ceremony essential to a formal lawful marriage.
-- Ballentine's Law Dictionary