空くう気き伝でん送そう管かんMeaningsNoun1. pneumatic tubeKanji used空empty air気state of mind伝transmit送send something管pipePitch accentくうきでんそうかんComposed of空くう気きair; atmosphere; mood; situationNoun伝でん送そうtransmission; communication; circulation; dissemination; diffusion; propagation; deliveryNoun管かんpipe; tube; wind instrument; vessel; duct; tract; canal; counter for tube-shaped objectsNoun