Back vowels.
Spelling cases. /ɔ/ Spelling cases. /o/ Spelling cases. /ʊ/ Spelling cases. /u/ Spelling cases. Central vowels. /ɚ/ Spelling cases. /ʌ/ Spelling cases. /ə/ Spelling cases. Front vowels. /i/ Spelling cases. /ɪ/ Spelling cases. /e/ Spelling cases. /ɛ/ Spelling cases. /æ/ Spelling cases.