He is an expert in comparative linguistics.

He is world-famous as a comparative linguist.

Computational linguistics is the study of analyzing human language with computers.

Natural language understanding is an important field of artificial intelligence.

He is studying late into the night to learn a new computer language.

I am very interested in sociolinguistics.

He is attending a programming school to learn object-oriented languages.

Natural language processing is a technology that allows computers to understand and analyze human language.

He is an amazing polyglot who can speak five languages fluently.

There are many cognates in English and German.