Russian.

Of or relating to Moscow or Muscovy, or their inhabitants; (gen.) Russian.

Of, relating to, or characteristic of Russia, or (more widely) its former empire or the former Soviet Union; inhabiting or native to Russia, its…

= Russian, adj.

Of or relating to Muscovy or its inhabitants; Muscovite.

Russian.

Of, belonging to, or native of this region; Russian. Cf. Little Russian, adj., White Russian, adj. 1.

Of or relating to the historical region of Black Ruthenia; of or belonging to the Black Russians (see sense A. 1). historical (now rare).

= Russian, adj.

= Russian, adj. 1a. Used humorously, but sometimes considered offensive.

Of, relating to, under the influence of, or living in the U.S.S.R.

= Mordvin, adj.