ūm (p. 70) s. An interjection formed from உம் lengthened, a particle indicative of attention, assent, &c. ஊமெனல், v. noun. Denoting attention, assent, &c. கதைசொல்லுகிறேன்ஊமென்றுகேள். I will tell you a story, show that you listen by saying ஊம். அவனூமென்னவுமில்லை. He does not say a word, he does not open his lips. 12)