1) American legal terminology 2) Celebration 3) Ritual 4) Solemnisation 1) Celebration 2) Solemnisation 
• (n.) The act of solemnizing; celebration; as, the solemnization of a marriage.
Sol`em·ni·za'tion noun [ Confer French solemnisation , solennisation .] The act of solemnizing; celebration; as, the solemnization of a marriage. 
solemnisation noun the public performance of a sacrament or solemn ceremony with all appropriate ritual; `the celebration of marriage`