What is Doun?

Doun definition and meaning on Dictionary terms:
any bird of the family Columbidae, especially the smaller species with pointed tails.Compare pigeon1(def 1).
a pure white member of this species, used as a symbol of innocence, gentleness, tenderness, and peace.
(initial capital letter) a symbol for the Holy Ghost.
an innocent, gentle, or tender person.
Also called peace dove. a person, especially one in public office, who advocates peace or a conciliatory national attitude.Compare hawk1(def 4).
dove color.

(initial capital letter) Astronomy. the constellation Columba.