They opposed the plan in concert.

This word is an example of debuccalization.

A lateral consonant, or 'sokumenon', is a type of consonant produced with the sides of the tongue.

A coronal consonant, or 'ぜっちょうおん', is a type of consonant that is pronounced using the tip or the upper part of the tongue.

A glottal sound is a sound that is produced when the glottis is closed.

I am majoring in phonetics at university.

He is majoring in phonology at university.

The study of phonons is an important field in physics.

In linear algebra, the upper triangular matrix plays a very important role.

The grammar of 'Jou-nidan' is an important part in learning Japanese.