His native language is Spanish.

He is learning Tibetan language.

They are using English as a common language.

He always speaks in polite language, so he is considered very courteous.

I am thinking of learning the Thao language.

His laughter can be expressed with the onomatopoeic word 'gyahaha'.

He started exercises to strengthen his sternocleidomastoid muscle.

The stylohyoid muscle is part of the muscles of the head and has the role of lifting the hyoid bone.

Scottish Gaelic is a language spoken in parts of Scotland.

The Tangut language is one of the ancient languages of China.