Coronation
ceremony marking the formal investiture of a monarch and/or their consort with regal power
A coronation is a ceremony that gives a monarch regal or royal power or recognizes that power. The power is symbolized by putting a crown on his or her head. We say that the monarch is "crowned" at the coronation.
The ritual with anointing may have a religious meaning. Coronations are not as common now as in the past, although in some countries such as Great Britain it is still normal to hold the ceremony to install a new king or queen.
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