The correct spelling of the phrase "wast on a par" is "wasn't on a par." In IPA phonetic transcription, "wasn't" is pronounced /ˈwɑːzənt/ and "on a par" is pronounced /ɒn ə pɑː/. The confusion in spelling arises from the contraction of "was not" to "wasn't." However, understanding the correct spelling and pronunciation of words is crucial for effective communication and avoiding misunderstandings in written and spoken communication.