The Russian Empire was a nation that existed from 1721 to 1917.

He has many Russian friends.

He played Russian roulette, risking his life.

The Russian Federation has a vast territory.

He can speak Russian fluently.

My Chinese-Japanese character dictionary is very useful for learning Japanese.

I am trying to understand classical literature using a classical Japanese dictionary.

I bought a new Japanese-Japanese dictionary.

He used a thesaurus to find suitable words for writing his essay.

He was born as an illegitimate child and experienced many difficulties.