The spelling of "study at voluntary" may seem confusing, but it is actually quite straightforward if you break it down using International Phonetic Alphabet (IPA) transcription. The word "study" is spelled with an /ʌ/ vowel sound, while "at" is spelled with an /æ/ vowel sound. Finally, "voluntary" is spelled with an /ɒ/ vowel sound followed by a /t/ consonant sound. When pronounced together, the word sounds like "stuh-dee at vol-un-tuh-ree."