crown āļāļ·āļāļāļ°āđāļĢ crown āļāļ·āļāļāļ°āđāļĢ An ornamental circlet or head covering, often made of precious metal set with jewels and worn as a symbol of sovereignty.The power, position, or empire of a monarch or of a state governed by constitutional monarchy.The monarch as head of state.A distinction or reward for achievement, especially a title signifying championship in a sport.Something resembling a diadem in shape.A coin stamped with a crown or crowned head on one side.A silver coin formerly used in Great Britain and worth five shillings.Any one of several coins, such as the koruna, the krona, or the krone, having a name that means "crown.âThe top or highest part of the head.The head itself.The top or upper part of a hat.The highest point or summit.The highest, primary, or most valuable part, attribute, or state: considered the rare Turkish stamp the crown of their collection. Dentistry The part of a tooth that is covered by enamel and projects beyond the gum line.Dentistry An artificial substitute for the natural crown of a tooth.Nautical The lowest part of an anchor, where the arms are joined to the shank.Architecture The highest portion of an arch, including the keystone.Botany The upper part of a tree, which includes the branches and leaves.Botany The part of a plant, usually at ground level, where the stem and roots merge.Botany The persistent, mostly underground base of a perennial herb.Botany See corona.The crest of an animal, especially of a bird.The portion of a cut gem above the girdle.To put a crown or garland on the head of.To invest with regal power; enthrone.