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.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.

He repudiated the proposal.

He said, 'Even if you die in the evening, it's okay if you ask the way in the morning,' teaching me the importance of living each day to the fullest.

The plan to establish a new company is in progress.

Infrasound is a type of sound that is inaudible to the human ear.