Alphabet Mind Games.

I have this thing where I can't sleep at night unless there is noise going on. While camping, I did not have the luxury of keeping a tv on all night to be sure that I get a good night's sleep. But, I have found a game that for some reason, helped me from going insane with sleeplessness. I went through lists of things, making one for each letter of the alphabet. Letters in brackets are ones that I wasn't able to come up with. I would appreciate anyone's help on missing words. Round 1: Animals of the Alphabet ape, babboon, cow, dog, elephant, fawn, gibbon, hawk, iguana, jaguar, kangaroo, lemur, monkey, newt, orangutan, pig, quail, rat, snake, tiger, [u, v,] walrus, [x,] yeti, zebra Round 2: Foods of the Alphabet apple, banana, carrot, date, egg, fig, ginger, horseradish, ice cream, jello, ketchup, lemon, meatballs, orange, peas, quail, rice, spaghetti, tea, [u,] veal, watermelon, [x,] yam, zabaione Those were from the first night. After that, I was only able to do one round a night before I fell asleep. Round 3: Four syllable words of the Alphabet architecture, biology, cantankerous, detrimental, elephantine, Floridian, geology, hypodermic, institution, juvenile, Kangamangus, labotomy, mechanical, narcissistic, obviously, pressurizing, quarentining, romanticize, sympathetic, tyrannical, uintended, varigated, [w,] xenophobic, [y,] zoology Round 4: Five syllable words of the Alphabet alienation, biological, creationism, demonology, ecological, fraternization, geological, hysterectomy, irrationally, juxtoposition, [k], luminocity, methodology, necrophelia, oligarcical, patriotism, quintessentialy, reciprocity, systematically, trigonometry, unbelievable, vigilantism, westernization, xenophobia, [y], zoological