To express the concept of marriage as a noun, you would use words like:
* Marriage: This is the most common and direct noun for the act or state of being married.
* Matrimony: This is a more formal word for marriage.
* Wedding: This refers to the ceremony or event of getting married.
Here are some examples:
* Verb: "They will marry next year."
* Noun: "Their marriage is strong and happy."
* Noun: "The matrimony was blessed by the priest."
* Noun: "Their wedding was a beautiful celebration."