意味: つばn. (Kata=ツバ, Kanji=唾) saliva, sputum, clear watery liquid secreted into the mouth by the salivary glands (aids in taste and swallowing, begins the digestion of starches)n. (Kanji=鍔) sword guard; brim, edgev. (Kanji=唾する) spit, eject saliva from the mouth