IPAalso: アイピーエーFreq.FrequencyTop 50,000Meanings1nounInternational Phonetic Alphabet; IPAlinguisticsLinguistics term; refers to the standardized system of phonetic notation.See also: 国際音声記号言げん語ご学がくの授じゅ業ぎょうでIPAを学まなんだ。I learned the IPA in my linguistics class.