12-Letter Words Starting with O

Oafishness

Oarsmanship

""OBDURATE to become hard-hearted, also OBDURE""

Obfuscation

Objurgation

""Lanceolate in the reversed order, that is, narrowing toward the point of attachment more than toward the apex.""

Oblateness

In an obligatory manner; by reason of obligation.

Erasing

Fantastic lob before repeat loss

The removal of oil to Iran - bet it goes astray!

Utter destruction

Tending or serving to obliterate.

Obliterator

OBNUBILATE To cloud; to obscure.

Clouding stink over knight with general rejoicing losing head

For this custom, brain's abandoned

One who makes dim, daft subtractions

Wrong subtractions standing in the way of enlightenment

Resisting enlightenment, having messed up subtractions

Obscuration

Roughly Sobers admits VAT is charged for examinations

Measurements from an experiment soon vibrates all over the place

Childbirth doctor

Medical specialist - is certain to get involved around start of birth (wordplay)

Expert with children, i.e. Scot involved with bairn taking temperature

Cosy in a local? Can be, sometimes

From time to time

Party supporter? Now and then

Occidental

Occultation

Relating to one's job or profession

Rehabilitation via practical activities

To do with work

Scientific study of the seas

A subject for deep study

Study of the sea

Oceanology

One whose main interest is scientific

Sea scientist

Scientist involved with study of the seas

Ochlocracy

Octahedral

Octapeptide

Old man's gone out with raincoat

Robert Frost, for example.

Veteran's gone out in shabby raincoat

Also octosyllabic ( k t -s -l b k) a. A line of verse containing eight syllables.

Octosyllabic.

Odontoblast

Officialdom

Officialese

Officialism

Officiation

Oleaginous

English word

An apparatus for measuring the acuity of the sense of smell.

OLIGARCHIC

Oligochaete

Oligophagy

""Feeding on a restricted range of food substances, especially a limited number of plants. Used chiefly of insects.""

Any of a group of viruses that contain single-stranded RNA and produce tumors in birds and mammals.

English word

Formation of words from natural sounds.

Cuckoo or "whippoorwill," for example

Formation of words like "buzz" or "hiss"

Sounding like its meaning

""Any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms; a member of the Onychophora, also called Malacopoda. See Malacopoda.Onychophora, also called Malacopoda. See Malacopoda.""

Opalescence

Opalescent

Opaqueness

Generously display palms

Generously

He'd lend, no pay, all required in most generous fashion

OPERATIC the technique of staging operas

""OPERATION The act or process of operating; agency; the exertion of power, physical, mechanical, or moral.""

""OPERATION The act or process of operating; agency; the exertion of power, physical, mechanical, or moral.""

OPERATOR one that {operates=v}

Unduly attached to one's own opinions; opinionated.

The condition or quality of being opposable.

""OPPOSITION The act of opposing; an attempt to check, restrain, or defeat; resistance.""

Optimality

""OPTIMISE to make as effective as possible, also OPTIMIZE""

""OPTIMIZE to make as effective as possible, also OPTIMISE""

Oratorical

Orchestral

Gold casket marked and scored

Arranged to have the dart score put out

Arranged for gold casket getting evaluated

ORCHESTRATE to write an orchestra score for; -- of a musical composition.

Arranges music

Narrow passages for killer whales (wordplay)

Or that scorer, perhaps (wordplay)

Speaker reserves royal box for arranger

Speaker keeps royal box for the organiser

""Pertaining to, or resembling, a natural order (Orchidace\'91) of endogenous plants of which the genus Orchis is the type. They are mostly perennial herbs having the stamens and pistils united in a single column, and normally three petals and three sepals, all adherent to the ovary. The flowers are curiously shaped, often resembling insects, the odd or lower petal (called the lip) being unlike the others, and sometimes of a strange and unexpected appearance. About one hundred species occur in the United States, but several thousand in the tropics. Orchidace\'91) of endogenous plants of which the genus Orchis is the type. They are mostly perennial herbs having the stamens and pistils united in a single column, and normally three petals and three sepals, all adherent to the ovary. The flowers are curiously shaped, often resembling insects, the odd or lower petal (called the lip) being unlike the others, and sometimes of a strange and unexpected appearance. About one hundred species occur in the United States, but several thousand in the tropics.""

Commonly encountered; usual. See Synonyms at common .

Organicity

Firm with The Irish Times, for one

Running over before Saigon train's off

Company talk about fantastic gains

""The act of organizing; the act of arranging in a systematic way for use or action; as, the organization of an army, or of a deliberative body. as, the organization of an army, or of a deliberative body.""

""Making an impression upon an organ; plastic; said of the effect or impression produced by any substance on the organs of touch, taste, or smell, and also on the organism as a whole.""

Organology

Orientalism

Orientalist

ORIENTALIZE to render Oriental; to cause to conform to Oriental manners or conditions.

Orientalize

Orientation

Origination

By way of ornament.

Ornateness

Relating to the description of mountains

Pl. oropharynges (-f -r n j z) or oropharynxes The part of the pharynx between the soft palate and the epiglottis.

Oropharynx

Orthodontia

""Perpendicularly; at right angles; as, a curve cuts a set of curves orthogonally. as, a curve cuts a set of curves orthogonally.""

""ORTHOGRAPH An orthographic projection, sometimes partly in section, esp. of a building.""

The treatment of bone and muscle disorders

Rum do, as her topic is a medical speciality

Orthopteran

Devious colonialists making waves

Oscillogram

Device for recording electrical waves

Device for visualising, eg, fluctuations in current

Osmolality

Osmolarity

Action is so, if developing then hardening

Ostentation

Given to showy display

Gaudy and garish

Showy and vulgar

""OSTEOBLAST One of the protoplasmic cells which occur in the osteogenetic layer of the periosteum, and from or around which the matrix of the bone is developed; an osteoplast.""

OSTEOCLAST A myeloplax.

Of or pertaining to osteology.

""A disease of the bones, in which they lose their earthy material, and become soft, flexible, and distorted. Also called malacia. malacia.""

Osteopathy

""Producing bone; as, osteoplastic cells. as, osteoplastic cells.""

A tumor having the structure of a sacroma in which there is a deposit of bone; sarcoma connected with bone.

Ostracoderm

OUTACHIEVE

OUTBALANCE To outweight; to exceed in weight or effect.

Outbargain

Outcavil

OUTDATED outdate

Left (a competitor) far behind

Leaves behind.

Excelled in military skill

In a bizarre way

Oddly - and in a foreign manner

Expense includes new food left in an odd way

Outmaneuver

OUTORGANIZE

Outorganize

""The process of facilitating a terminated employee's search for a new job by provision of professional services, such as counseling, paid for by the former employer.""

OUTPOPULATE

Outpopulate

Outpreach

In a shockingly bad manner

Outrival

OUTSPARKLE To exceed in sparkling.

Extending broadly

Ovariotomy

ABSTRACT to draw away

Way, way, way too prevalent

On a roll, Dutch worker produces too much

ACHIEVED achieve

Academic Type A personality

Hardly a slacker

*Person who constantly exceeds expectations

Overachieve

ACTIVITY the state of being active

Overanalyse

Overanalysie

ANALYZED analyze

Overanalyze

Overarousal

ARRANGED arrange

Overarrange

Overassert

Fell down

Overbalance

Overbleach

Overbleach

More than is required for six deliveries (wordplay)

Problem with space? Ring father going back to room for everybody!

Overcasting

Overcaution

A curious vote, sadly going for the ultra-safe option (wordplay)

Electrician's worry?

Electrician's worry (wordplay)

Ripping off

Overclaim

CLASSIFY to arrange in categories

Overclean

Overclear

Overcoach

Overcram

A civil rector sadly becoming too judgmental

Casanova loses the head with serious type that's hard to please

DECORATE to {adorn=v}

DOMINANT a controlling genetic character

DRAMATIC pertaining to {drama=n}

EDUCATED educate

Overeducate

EMPHASES emphasis

Promises have produced too much stress

Excessive stress

Excessive underlining

Excessively emphatic.

ENAMORED enamor

Take too seriously.

Rate too highly

Value too highly

Overexpand

Overexplain

Too well known

FATIGUED fatigue

Overfatigue

Overfavor

Overgarment

HANDLING the act of handling

Overharvest

""IDEALIZE to regard as perfect, also IDEALISE""

Find elevator potentially too big

Overinflate

ISSUANCE the act of {issuing=v}

Overlabor

Overlearn

LITERARY pertaining to books and writings

MANAGING manage

MANNERED having manners

Subdued Balls and Miliband welcoming upright head of state

Subdued

Overmatch

MATURITY the state of being {mature=adj}

MEDICATE to treat with medicine

OPERATED operate

Overoperate

""ORGANIZE to form into an organic whole, also ORGANISE""

ORNAMENT to {decorate=v}

PACKAGED package

Overpackage

Overpayment

Overpedal

PEDALLED pedal