oligarchy

n (politics 政) 1 (a) [U] form of government in which a small group of people hold all the power 寡头政治; 寡头统治. (b) [C] these people as a group 寡头统治集团. 2 [C] country governed by an oligarchy 寡头统治的国家.

old man's beard, old master, old school, old stager, old sweat, old woman, old-fashioned, old-maidish, old-time, old-timer, old-world, olden, oldie, oldish, oldster, oleaginous, oleander, olfaction, olfactory, oligarch, olive, olive oil, olive-branch, Olympiad, Olympian, Olympic, Olympic Games, Olympics, OM, ombudsman, omega, omelet, omelette (also omelet), omen, ominous, ominously, omission, omit, omni-, omnibus,