marriage - wedding
Marriage refers to the state of being married, or to the relationship between a husband and wife.
I wasn't interested in marriage or children.
They have a very happy marriage.
You can also use marriage to refer to the act of getting married.
Her family did not approve of her marriage to David.
You don't usually use ‘marriage’ to refer to the ceremony in which two people get married. Use wedding.
He was not invited to the wedding.
'wedding anniversary' also found in these entries: