Words beginning with O
The letter O
391 videos · Page 2 of 14oblige
To constrain someone by force or by social, moral or legal means.
obliged
Under an obligation to do something.
oboe
A soprano and melody wind instrument in the modern orchestra and wind ensemble. It is a smaller instrument and generally made of gre…
obscure
Dark, faint or indistinct.
obsequious
Excessively eager and attentive to please or to obey instructions; fawning, subservient, servile.
observer
One who makes observations, monitors or takes notice.
obsidian
A type of naturally occurring black glass produced by volcanoes.
obstacle
Something that impedes, stands in the way of, or holds up progress, either physically or figuratively
obstetrician
A physician who specializes in childbirth.
obstetrics
The care of women during and after pregnancy.
obstreperous
Attended by, or making, a loud and tumultuous noise; boisterous.
obtain
To get hold of; to gain possession of, to procure; to acquire, in any way.
obtuse
Blunt; not sharp, pointed, or acute in form.
obviously
In an obvious or clearly apparent manner.
ocarina
A woodwind musical instrument that is closed at both sides to produce an enclosed space, and punctured with finger holes.
Occam's Razor
The principle of preferring the simplest of competing theories.
occasional
Occurring or appearing irregularly from time to time, but not often; incidental.
occipital
Of, pertaining to, or located within or near the occiput (back of the head) or the occipital bone.
occupation
An activity or task with which one occupies oneself; usually specifically the productive activity, service, trade, or craft for whic…
occur
To happen or take place.
occurrence
An actual instance when a situation occurs; an event or happening.
ocean
One of the large bodies of water separating the continents.
Ocean Current
Any more or less permanent or continuous, directed movement of water that flows in one of the Earth's oceans.
Ocean Pacific
Hear this word or name in the American Pronunciation Guide video.
oceania
A continental region composed of the islands of the central and southern Pacific Ocean, principally divided into Melanesia, Micrones…
ocelot
An American feline carnivore (Leopardus pardalis, syn. Felis pardalis) covered with blackish ocellated spots and blotches which are …
Ochai Agbaji
Hear this word or name in the American Pronunciation Guide video.
ocher
Alternative spelling of ochre.
ochre
A clay earth pigment containing silica, aluminum and ferric oxide.
ocoee
A city in Orange County, Florida, United States.