He has retained his ability to produce speech even after brain damage.

She overcame speech production disorder after brain damage.

He explained using simple words.

Derivative is one of the important concepts in linguistics.

He went to North Korea to learn the cultural language.

This new compound word is popular among young people.

There are various ideophones in Japanese.

'Beautiful' and 'pretty' are synonyms.

He is learning Nahuatl.

He can speak Azerbaijani.