The word "aesth" is not a correct spelling in English. It appears to be missing the final letter, "e", which would make it "aesthe". The correct spelling for this word is "aesthetic". The pronunciation of "aesthetic" is /esˈθetɪk/ according to the IPA phonetic transcription. This word is commonly used to describe beauty, art, and design. It is important to use correct spelling and pronunciation to ensure effective communication.