The spelling of the word "proval" is straightforward when considering its IPA phonetic transcription /ˈprəʊvəl/. The first syllable starts with the sound /prəʊ/ that represents the "pro-" prefix, followed by a central, unstressed /v/ sound. The final syllable comprises the schwa sound /əl/, representing the "-al" suffix at the end of the word. Altogether, "proval" is a valid English word that describes the act of proving or testing something.