Language contact occurs when people who speak different languages interact.

The use of renewable energy helps protect the global environment.

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

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

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

He is an expert in comparative linguistics.

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

He is world-famous as a comparative linguist.

Natural language understanding is an important field of artificial intelligence.

I am very interested in sociolinguistics.