潜せん航こうTop 40000MeaningsNounSuru verbIntransitive verb1. submarine voyage; underwater navigationKanji used潜lurk航navigationPitch accentせんこうUsed in vocabulary特とく殊しゅ潜せん航こう艇ていspecial purpose submarine (esp. Japanese midget submarines used in WWII)Noun潜せん航こう艇ていmidget submarineNoun