By convention, the word volume implies a three-dimensional context where:
b aɪ WORD_BOUNDARY k ə n v ɛ n ʃ ə n WORD_BOUNDARY ð ə WORD_BOUNDARY w ɜː d WORD_BOUNDARY v ɑ l j uː m WORD_BOUNDARY ɪ m p l aɪ z WORD_BOUNDARY ʌ WORD_BOUNDARY θ ɹ iː d ɪ m ɛ n ʃ ə n ə l WORD_BOUNDARY k ɑ n t ɛ k s t WORD_BOUNDARY w ɛ ɹ WORD_BOUNDARY