He is quite a good cook.

I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.

There are no aspirated consonants in Japanese.

An aspirated consonant is a sound that is pronounced with a strong exhalation.

Haplology is a part of linguistics, referring to the phenomenon where a part is omitted when the same syllable repeats.

An affricate refers to a specific type of sound in phonetics.

He is an expert in musicology.

This word is affected by the sound shift.

Retroflex sounds are difficult to pronounce.