ラバウルラバウルFreq.FrequencyTop 100,000Meanings1nounRabaul (Papua New Guinea)A town in Papua New Guinea, historically known for its World War II significance.ラバウルは第だい二に次じ世せ界かい大たい戦せん中ちゅう、日本にほん軍ぐんの重じゅう要ような拠きょ点てんだった。Rabaul was an important base for the Japanese military during World War II.