12-Letter Words Starting with O

Oarsmanship

Drunken bore's posture becomes unruly

Sober posture (anagram) - unruly

Noisy, hard to control

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

Octapeptide

Oligophagy

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

Oligopsony

Lacking in plant nutrients and having a large amount of dissolved oxygen throughout. Used of a pond or lake.

Omnipotence

With all-encompassing power

Being everywhere at once

Drunk in recompense for divine existence (wordplay)

Ubiquity

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.""

Pl. oophorectomies Surgical removal of one or both ovaries. Also called ovariectomy .

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.

Opportunism

They make the best of what happens to awful sprouts in pot

They make the best of what happens to wild sprouts in pot

The condition or quality of being opposable.

The quality or state of being opposite.

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

Oppressive

Optimality

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

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

Optometrist

""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.""

Ornithopter

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

""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

Orthopedist

Orthopteran

Inflected form of ORTHOPTER Inflected form of ORTHO short for orthochromatic plate (a photographic plate)

Orthopter

Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.

Device for recording electrical waves

Device for visualising, eg, fluctuations in current

Laboratory device for viewing waveforms

Laboratory instrument

Osteopathy

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

""Pl. osteoporoses (-s z) A disease in which the bones become extremely porous, are subject to fracture, and heal slowly, occurring especially in women following menopause and often leading to curvature of the spine from vertebral collapse.""

Brittle bones condition

Oops, Tories so affected by bodily weakness!

Bone deficiency

""Pl. osteoporoses (-s z) A disease in which the bones become extremely porous, are subject to fracture, and heal slowly, occurring especially in women following menopause and often leading to curvature of the spine from vertebral collapse.""

OUTCOMPETE

Outcropping

Outperform

""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.""

Outpolitick

OUTPOPULATE

Outpopulate

Outpreach

OUTPRODUCE

OUTPROMISE

Word with prefix out-

OUTSPARKLE To exceed in sparkling.

Extending broadly

Outsprint

Outstrip

More than is required for six deliveries (wordplay)

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

COMPRESS to {compact=v}

Overcrop

Overdevelop

EMPHASES emphasis

Promises have produced too much stress

Excessive stress

Excessive underlining

Excessively emphatic.

EQUIPPED equip

Overexpand

Overexplain

EXPLICIT conclusion or last words in a book

Overexploit

EXPOSING expose

Too much publicity

Photo given too much light

Too much visibility

Superior feudal position

Ruling position

Spare house in Westminster - trendy 9 enjoyed it

OPERATED operate

Overoperate

Unrealistically high view of one's prospects

OPTIMIST one who exhibits optimism

PACKAGED package

Overpackage

Overpayment

Overpedal

PEDALLED pedal

PEOPLING people

To persuade or influence against one's inclination or judgment.

Overplan

Overplant

Overplot

Put too many people into (a region)

Fill with too many people

Oppressive

Irresistible

The act of praising unduly; excessive praise.

Excessive pressure or urging.

Overprint

PRODUCED produce

Overproduce

Overprogram

PROMISED promise

Overpromise

PROMOTED promote

Overpromote

Overprotect

Overreport

Overrespond

Fail to explain fully enough

Crudely dumb down

Make too easy

Having 41 winks (wordplay)

11 pigs or bats rising late

Failing to get up on time

Overslip

SPENDERS spender

Cause of budget trouble.

Squandering money proves foolish with final settlement

Overstep

SUPPLIED supply

Oversupply

Overtrump

Oviposition

Ozonosphere