OGPUThe Joint State Political Directorate (Russian: Объединённое государственное политическое управление), the intelligence and state security service and secret police of the Soviet Union from 1923 to 1934.
OgraA commune and village in Mureș County, Romania.
ogreA large, grotesque, brutish humanoid monster, typically marked by great strength and a propensity to kill or devour humans.
OhafiaA local government area of Abia State, Nigeria.
ohaguroThe Japanese custom of blackening the teeth with a solution of iron filings and vinegar, especially popular between the Heian and Edo periods, from the 10th century until the late 19th century.
OhakuneA small town in Ruapehu district, Manawatū-Whanganui, New Zealand.
ohchinolideAny of a group of limonoids found in Azadirachta indica.
ohelA structure erected over the grave of a great and righteous person.
oheloA small red or yellow berry growing on the shrub Vaccinium reticulatum of volcanic parts of the Hawaiian islands of Hawaii and Maui, or the shrub itself.
oheloberryThe berry of Vaccinium reticulatum, native to Hawaii, similar in taste to the cranberry.
OhloneA member of an indigenous population native to the San Francisco and Monterey Bay Areas, California.
OhlsdorfA municipality in Gmunden district, Upper Austria, Austria.
ohmIn the International System of Units, the derived unit of electrical resistance; the electrical resistance of a device across which a potential difference of one volt causes a current of one ampere.
ohmageAn amount of electrical resistance measured in ohms.
oilbirdA nocturnal South American bird, of the species Steatornis caripensis of the order Steatornithiformes, related to the nightjars that feeds on the fruit of the oil palm and tropical laurels.
oilboxA container or reservoir for lubricating oil.
oilcanA container with a long spout, for holding oil and delivering it in drops or small quantities for lubrication.
oilclothA fabric or cloth treated on one side with a waterproof covering, especially one made from linseed oil etc.; used for flooring, tablecloths, kitchen shelves and sometimes furniture covering.
oildownThe national dish of Grenada, consisting of meat, breadfruit, and other vegetables slow-cooked in coconut milk until all the coconut milk is absorbed.
OilgateA South African political scandal in which the petrol company Imvume Holdings was accused of paying millions of state money to the ruling African National Congress shortly before elections.
oilhouseA building for storing and dispensing fuel oil.
oiligarchA member of the ruling class that obtains their power from control of the oil industry.
oiligarchyA country or elite group that obtains its power from control of the oil industry.
oilmanSomebody (especially a man) involved in the production, refinement or delivery of oil; such as an oil field worker or executive, or the owner of an oil well.