Select a letter for some words
Oath
A solemn affirmation or declaration, made with a reverent appeal to God for the truth of what is affirmed.
Oblate
One of an association of priests or religious women who have offered themselves to the service of the church. There are three such associations of priests, and one of women, called oblates.
Obligato
See .
Obolary
Possessing only small coins; impoverished.
Obovate
Inversely ovate; ovate with the narrow end downward; .
Occasionable
Capable of being occasioned or caused.
Occipitoaxial
Of or pertaining to the occipital bone and second vertebra, or axis.
Occulted
Hidden; secret.
Occupation
The act or process of occupying or taking possession; actual possession and control; the state of being occupied; a holding or keeping; tenure; use; .
Ochroleucous
Yellowish white; having a faint tint of dingy yellow.
Octahedrite
Titanium dioxide occurring in acute octahedral crystals.
Octochord
See .
Octodont
Of or pertaining to the , a family of rodents which includes the coypu, and many other South American species.
Octonary
Of or pertaining to the number eight.
Odalisque
A female slave or concubine in the harem of the Turkish sultan.
Odocoileus
A genus of North American deer.
Odontiasis
Cutting of the teeth; dentition.
Odontotormae
An order of extinct toothed birds having the teeth in sockets, as in the genus . See .
il-de-buf
A circular or oval window; -- generally used of architecture of the 17th and 18th centuries. A famous room in the palace of Versailles bears this name, from the oval window opening into it.
Offset
To set off; to place over against; to balance; .
Oft
Frequent; often; repeated.
Old-fashioned
Formed according to old or obsolete fashion or pattern; belonging to or characteristic of times past; adhering to old customs, styles, or ideas; .
old-maidish
Like an old maid; prim; precise; particular; overly fastidious.
Oligocene
Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods.
Oligosepalous
Having few sepals.
Oliva
A genus of polished marine gastropod shells, chiefly tropical, and often beautifully colored.
Olivewood
The wood of the olive.
-oma
A suffix used in medical terms to denote a of some part, usually some kind of tumor; .
Omit
To let go; to leave unmentioned; not to insert or name; to drop.
Omohyoid
Of or pertaining to the shoulder and the hyoid bone; .
once-over
a swift cursory examination or inspection; .
Onerate
To load; to burden.
Oozy
Miry; containing soft mud; resembling ooze; .
Opalescence
A reflection of a milky or pearly light from the interior of a mineral, as in the moonstone; the state or quality of being opalescent.
Ophiuran
Of or pertaining to the Ophiurioidea.
Opiniate
To hold or maintain persistently.
Optative
Something to be desired.
Orchidologist
One versed in orchidology.
Orcin
A colorless crystalline substance, , which is obtained from certain lichens (, , etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein.
Ordainable
Capable of being ordained; worthy to be ordained or appointed.
Organology
The science of organs or of anything considered as an organic structure.
Oricalche
See .
Ornithomancy
Divination by means of birds, their flight, etc.
Orphanhood
The state or condition of being an orphan; orphanage.
Oryzopsis
A genus of grasses incluiding rice grass.
Oscillating
That oscillates; vibrating; swinging.
osteoclasis
The operation of breaking a bone in order to correct deformity.
Otheoscope
An instrument for exhibiting the repulsive action produced by light or heat in an exhausted vessel; a modification of the radiometer.
Ouphen
Elfish.
Outborn
Foreign; not native.
outbreak
A bursting forth; eruption; insurrection; mutiny; revolt.
Outburn
To exceed in burning.
Outmeasure
To exceed in measure or extent; to measure more than.
out-of-door
located, .
Outscorn
To confront, or subdue, with greater scorn.
Outspread
To spread out; to expand; -- usually as a or
Outwall
The exterior wall; the outside surface, or appearance.
Outwoe
To exceed in woe.
Ovariotomy
The operation of removing one or both of the ovaries; ophorectomy.
Ovate-lanceolate
Having a form intermediate between ovate and lanceolate.
Overcharge
To make excessive charges.
overdramatize
to present in an overly dramatic manner.
Overdraw
To exaggerate; to overdo.
Overdye
To dye with excess of color; to put one color over (another).
Overempty
To make too empty; to exhaust.
Overflux
Overflow; exuberance.
Overlavish
Lavish to excess.
Overman
One in authority over others; a chief; usually, an overseer or boss.
Overslide
To slide over or by.
Overswell
To swell or rise above; to overflow.
Overthwartly
In an overthwart manner; across; also, perversely.
Overtower
To soar too high.
Overtrust
To trust too much.
Overweight
Overweighing; excessive.
Overword
To say in too many words; to express verbosely.
Ovisac
A Graafian follicle; any sac containing an ovum or ova.
Oxonate
A salt of oxonic acid.
Oxygenium
The technical name of oxygen.
Oyer
A hearing or an inspection, as of a deed, bond, etc., .
ozonization
Ozonation.