or
Connects at least two alternative words, phrases, clauses, sentences, etc., each of which could make a passage true.
An operator denoting the disjunction of two propositions or truth values. There are two forms, the inclusive or and the exclusive or.
Counts the elements before and after as two possibilities.
Otherwise (a consequence of the condition that the previous is false).
Connects two equivalent names.

oraclelike
Like an oracle; prophetic.

oracular
Of or relating to an oracle.
Prophetic, foretelling the future.
Wise, authoritative.
Ambiguous, hard to interpret.

oraculous
Oracular.

orad
Located towards the oral opening (the mouth).

oral
Relating to the mouth.
Relating to the mouth.
Relating to the mouth.
Relating to the mouth.
Relating to the mouth.
Spoken rather than written.
Spoken rather than written.
Spoken rather than written.
Spoken rather than written.

oralistic
Of or pertaining to oralism.

oralizable
Able to be oralized.

oralmost
Located furthest in the oral direction.

oralnasal
oronasal

orals
plural of oral

orangeless
Without oranges.

orangespotted
Having orange spots

orangoid
Resembling (that of) an orangutan.

orangutanlike
Resembling an orangutan

orational
Synonym of oratory (“relating to public speaking”).

oratorial
oratorical.

oratorian
A member of a Roman Catholic oratory.

oratorians
plural of oratorian

oratoric
Alternative form of oratorical.

oratorical
of, or relating to oratory or an orator.

oratorlike
Resembling or characteristic of an orator.

orbiculated
Alternative form of orbiculate.

orbifolded
Converted into an orbifold

orbifoldized
Converted to, or considered as an orbifold

orbifrontal
Alternative form of orbitofrontal.

orbiliaceous
Of or relating to the Orbiliaceae.

orbital
Of or relating to, or forming an orbit (such as the orbit of a moon, planet, or spacecraft).
Of or relating to the eye socket (eyehole).
(of roads, railways) Passing around the outside of an urban area.

orbitals
plural of orbital

orbitary
Pertaining to an orbit; orbital.
Situated around the orbit.

orbitational
Of, or related to an orbit or orbiting.

orbitocerebral
Relating to the orbit of the eye and the brain

orbitofrontal
Located in the frontal lobes above the orbits of the eyes.

orbitographic
Relating to orbitography (both senses)

orbitoidal
Of or pertaining to an orbitoid.

orbitolateral
lateral to the orbit of the eye

orbitomaxillary
Of or pertaining to the orbit of the eye and the upper jawbone.

orbitomeatal
Relating to the orbit of the eye and the meatus of the ear

orbitomedial
Relating to the orbital gyrus and the medial prefrontal cortex

orbitomesial
Alternative form of orbitomedial.

orbitonasal
Of, pertaining to, or between the eye socket and the nose.

orbitonic
Of or relating to orbitons.

orbitoprefrontal
orbital and prefrontal

orbitosphenoid
Of or pertaining to the orbit and the sphenoid bone

orbitosphenoidal
Of or pertaining to the orbitosphenoid bone.

orbitosphenoids
plural of orbitosphenoid

orbitostriatal
orbital and striatal

orbitotemporal
Relating to the orbit (of the eye) and the temple

orbitozygomatic
Alternative form of zygomatico-orbital.

orbiviral
Relating to orbiviruses

orbless
Without an orb or orbs.

orblike
Resembling an orb.

orcalike
Resembling or characteristic of an orca.

orchardless
Without an orchard.

orchardlike
Resembling or characteristic of an orchard.

orchardy
Resembling or characteristic of an orchard.

orchestic
Relating to dance

orchestraless
Without an orchestra.

orchestrational
Of or pertaining to orchestration.

orchic
Relating to the orchis; testicular.

orchidaceous
Of or pertaining to orchids.
Exotic in a rare, mysterious, alluring, or sensual way.

orchidean
orchidaceous
orchidaceous

orchidectomized
simple past and past participle of orchidectomize

orchideous
orchidaceous

orchidlike
Resembling or characteristic of an orchid.

orchidological
Of or pertaining to orchidology.

orchiectomised
Having undergone orchiectomy

orchitic
Relating to orchitis.

orchitogenic
That produces orchitis

orcish
Of or relating to orcs (monstrous humanoid creatures).

orclike
Resembling or characteristic of an orc.

ordainable
Capable of being ordained; worthy to be ordained or appointed.

orderable
That may be ordered (obtained by placing an order).
That may be ordered (put in sequence).

orderless
Devoid of order or arrangement; chaotic.

orderlies
plural of orderly

orderly
Neat and tidy; possessing order.
Methodical or systematic.
Peaceful; well-behaved.
Being on duty; keeping order; conveying orders.

ordinal
Indicating position in a sequence.
Pertaining to a taxon at the rank of order.
Intercardinal.

ordinale
Alternative form of ordinal (religious book)

ordinales
plural of ordinale

ordinant
One who ordains.

ordinariest
superlative form of ordinary: most ordinary

ordinative
Tending to ordain; directing; giving orders.

ordoliberal
A proponent of the theories and ideals of ordoliberalism (“a political philosophy that emphasizes the desirability of the government establishing rules to maximize the potential of the free market to produce results”).

ordoliberals
plural of ordoliberal

ordonnant
Of or relating to ordonnance.

ordurous
Filthy; revolting.
Pertaining to or consisting of ordure (dung).

oreal
Inhabiting high mountains.

orectic
Of or pertaining to desire or appetite

orective
Synonym of orectic.

oreganoed
Flavoured with oregano.

oreinirostral
Having a tall, domed beak or snout.

oreless
Without ore.

oreographical
Of or pertaining to oreography.

oreological
Alternative form of orological.

oreophilous
Mountain-loving; tending to inhabit mountains.

orexigenic
That stimulates the appetite.

orexigenics
plural of orexigenic

orexinergic
That generates or stimulates orexins.

orexogenic
Misspelling of orexigenic.

organal
Relating to organum.

organellar
Of or pertaining to organelles

organellogenetic
Of or pertaining to organellogenesis.

organellular
Relating to, or functioning via organelles.

organic
Pertaining to or derived from living organisms.
Pertaining to an organ of the body of a living organism.
Relating to the compounds of carbon, relating to natural products.
Of food or food products, grown in an environment free from artificial agrichemicals, and possibly certified by a regulatory body.
Describing a form of social solidarity theorized by Emile Durkheim that is characterized by voluntary engagements in complex interdependencies for mutual benefit (such as business agreements), rather than mechanical solidarity, which depends on ascribed relations between people (as in a family or tribe).
Of a military unit or formation, or its elements, belonging to a permanent organization (in contrast to being temporarily attached).
Instrumental; acting as instruments of nature or of art to a certain destined function or end.
Generated according to the ranking algorithms of a search engine, as opposed to deliberate promotional techniques e.g. by advertisers.
Developing in a gradual or natural fashion.
Harmonious; coherent; structured.

organicistic
Relating to organicism.

organics
plural of organic

organific
Making an organic or organized structure; producing an organism.
Acting through, or resulting from, organs.

organisable
Alternative form of organizable.

organisational
Alternative spelling of organizational.

organismal
Of or relating to an organism or organisms.

organismic
Of or relating to organicism or organisms.
Of or relating to a family of holistic psychological theories that tend to stress the organization, unity, and integration of human beings expressed through each individual's inherent growth or developmental tendency.

organistic
Relating to an organism.

organizable
Able to be organized

organizational
Of, relating to, or produced by an organization.
Relating to the action of organizing something.

organizationalized
That has been subjected to an organizational process.

organizatory
Relating to organization.