/ Dictionary O: Browse Dictionary Meanings and Definitions E. Cobham Brewer, 1894 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z oral surgery-oramaOranorangorangeorange IIIorangeadeorange blossomOrangeburgorange flower oilOrange Free Stateorange hawkweedOrangeismorange lily,OrangemanOrangemen's Dayorange milkweed.Orange Mountainsorange pekoeorange rustorangeryorange stickorange sulfur.OrangevaleOrangevilleorangewoodorangutanorangyOranianoransorantora pro nobis*orarionorariumorateorate fratresorationoratorOratorianoratoricaloratoriooratoryoratrixorborbicularorbiculateorbitorbitalorbital angular momentumorbitaleorbital indexorbital quantum numberorbital sanderorbital velocityorbiterOrbiting Astronomical ObservatoryOrbiting Geophysical ObservatoryOrbiting Solar Observatoryorb weaverorbyorcorcaorceinorch.orchardorchard grassorchardistorchard orioleorchard valveorchectomyorchestraorchestralorchestrateorchestrionorchi-orchidorchidaceousorchid cactusorchidectomyorchid familyorchido-orchidologyorchidotomyorchid treeorchiectomyorchilorchisorchitisorchotomyorcinolOR circuitOrcusOrczyord.ordainordaineeordealordeal beanordeal treeorderorder armsorder bill of ladingorderedordered fieldordered n-tupleordered pairorderlyorderly marketing agreementorderly officerorderly roomorder of businessorder of the dayOrder of the Garterorder portordinalordinal numberordinanceordinandordinariateordinarilyordinaryordinary differential equationordinary incomeordinary jubileeordinary-language philosophyordinary life insuranceordinary pointordinary rayordinary seamanordinary shareordinary stockordinary waveordinateordinationordn.ordnanceordoOrdóñezordonnanceOrdovicianordureOrdzhonikidzeoreoreadorebodyore bridgeÖrebroorecticore dressingOreg.oreganoOregonOregon cedarOregon CityOregon crab appleOregon firOregon grapeOregon mapleOregon myrtleOregon pineOregon Trailore hearthoreideOrekhovo-ZuyevoOrelOremOrenburgorendaOrenseOreoOreopithecus*ore rotundo*oreshootOresteia*OrestesOrestes complexØresundore tanker-orexiaorexisOrfeo ed Euridice*Orfforg.organorganaorgandyorganelleorgan grinderorganicorganicallyorganic chemistryorganic diseaseorganicismorganic solidarityorganismorganistorganizationorganization chartOrganization for Economic Cooperation and DevelopmentOrganization for European Economic CooperationOrganization of African UnityOrganization of American StatesOrganization of Petroleum Exporting Countriesorganizeorganizedorganized fermentorganized labororganized militiaorganizerorgano-organ of Cortiorganogenesisorganographyorganolepticorganologyorganomagnesiumorganometallicorganonorganophosphateorganosiliconorganosiloxaneorganotherapyorganotropismorgan pipeorgan-pipe cactusorgan-pipe coralorgan pointorgan screenorganumorgan whistleorganzaorganzineorgasmOR gateorgeatOrgetorixorgiasticorgone boxorgone energyorgulous Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language