The glottal stop plays an important role in linguistics.

A dorsal sound is a sound that is pronounced by the back of the tongue approaching or touching the palate or pharynx.

The theory of phonetic shift is an important part of linguistics.

This word is affected by the sound shift.

He is an expert in musicology.

He is an expert in orthoepy, teaching pronunciation.

This room is covered with soundproofing material, so the sound doesn't leak outside.

He honked the car horn to get my attention.

He learned how to operate the anti-tank gun.

His efforts were like a mantis trying to stop a chariot, he couldn't achieve any results.