Means “may it be so” or “so it is.” Amen is said to show hearty or solemn acceptance and agreement (Deut. 27:14–26) or truthfulness (1 Kgs. 1:36). Today at the end of prayers, testimonies, and talks, those who heard the prayer or message say an audible amen to indicate agreement and acceptance.
In Old Testament times, a person was to say amen when making an oath (1 Chr. 16:7, 35–36; Neh. 5:13; 8:2–6). Christ is called “the Amen, the faithful and true witness” (Rev. 3:14). Amen also served as the token of a covenant in the School of the Prophets (D&C 88:133–135).