Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
window [ˈwɪndəu] n (in house, vehicle) окно́#; (in shop) витри́на; (also: window pane) око́нное стекло́#
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.