Definition of gowns:
(n) :
A woman's ordinary outer dress, such as a calico or silk gown.
(n) :
A loose, flowing upper garment.
(n) :
The official robe of certain professionals, clerics, and scholars, such as university students and officers, barristers, judges, etc.
(n) :
(by metonymy) The university community, especially as contrasted with the local populace.
(n) :
A loose wrapper worn by gentlemen within doors; a dressing gown.
(n) :
The dress of civil officers, as opposed to military officers.