Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Spanish [ˈspænɪʃ] adj испа́нский#
n (LING) испа́нский*язы́к#
the Spanish
npl испа́нцы mpl
Spanish omelette омле́т по-испа́нски
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.