Another way of describing a field is this:
ʌ n ʌ ð ə ɹ WORD_BOUNDARY w eɪ WORD_BOUNDARY ʌ v WORD_BOUNDARY d ɪ s k ɹ aɪ b ɪ ŋ WORD_BOUNDARY ʌ WORD_BOUNDARY f iː l d WORD_BOUNDARY ɪ z WORD_BOUNDARY ð ɪ s WORD_BOUNDARY