Gemination plays an important role in Japanese phonology.

He worked hard to accomplish his goals.

Phonetics is the study of the phonemes of language.

His role is the team leader.

Health is very important.

His opinion is very important.

He is studying Japanese.

He is known as a person with learning.

He received the letter challenging him to a duel and began preparing for the duel.

Phonology is a branch of linguistics that studies the system of sounds and their functions.