大おお津つ波なみMeaningsNoun1. giant tsunami (over 3m in height according to the JMA definition); giant tidal waveKanji used大large津harborside波a waveComposed of大おお津つŌtsu (city in Shiga)Noun波なみwave; billow; ripple; breaker; swell; ups and downs; (something) advancing step by step; (something) surging forward inopposably; succession of changes; tendency; …Noun