13-Letter Words Starting with O

Objectivity.

OBJECTIVIST

Objectivity

Obliqueness

Obliteration

Disregardfulness

Obnoxious

Obnubilation

Obscurantism

People deliberately vague

Obscureness

Abstract noun (-ity)

Derived from visual evidence

Derived from visual examination - noble aviators (anagram)

Observatory

Obsessional

Obsessive

Obsolescence

Obsolescent

Obstetrical

Doctors specialising in childbirth

They make deliveries

Prenatal docs

Obstinate

Obtrusive

Obviousness

Oceanologist

People in their 80's

People in their ninth decade

80 year olds

Octosyllabic

Octosyllable

ODONTOBLAST One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine.

""(Life Sciences & Allied Applications / Plants) any epiphytic orchid of the tropical American genus Odontoglossum, having clusters of brightly coloured flowers""

Odoriferous

Odorousness

Offensive

Nonchalant and cool manner

In people (wordplay)

Presumably, these are in the foundations at work for those with seats

Officious

Oleandomycin

Olfactometer

Trade

""A man who investigates complaints and mediates fair settlements, especially between aggrieved parties such as consumers or students and an institution or organization.""

Ominousness

Omnipresence

Oneiromancy

Onerousness

Ongoingness

ONOMASTIC Applied to a signature when the body of the instrument is in another's handwriting.

Onomastician

Onomatology

One versed in the history of names.

Onomatopoeia

Onychophoran

Openability

Operability

Operationism

Operationist

Operative

Operoseness

""Pl. opisthobranchs Any of various marine gastropod mollusks of the subclass Opisthobranchia, characterized by gills, a shell that is reduced or absent, and two pairs of tentacles.""

Opportune

Ready to take any advantage

Taking immediate advantage

Exploiting passing advantages

Part 2 of the quote

Points out ripe possibilities of advancement

Tie up troops in creating chances of advancement

One on the other side

Opprobrious

Optimisation

Optimization

Optionality

Oracularity

Orchestrater

Stage-managing

Getting it into the right scale for music or bosom (wordplay)

Arrangement for lecture about royal box

Arrangement of gold part encircling box

Composer's skill

Orchestrator

Orderliness

Speeches welcoming surprising gains for companies

Societies

Organization

Biology ()

The origin and development of organs in animals and plants.

""ORGIASTIC Pertaining to, or of the nature of, orgies.""

ORIENTEERING orienteer

Originality

Of or pertaining to orismology.

""Of, belonging to, or characteristic of the order Ornithischia.""

Ornithology

Birdman (or woman)

Person who studies birds

Student of birds

Canine fixers

According to Cockney, they work on Hampstead Heath

Don't put in sir's tooth wonky! They should straighten it out

Orthography

Orthopterist

ORTHOPTEROID orthopter

""OSCILLATION The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration.""

Oscillograph

OSCILLOGRAPH a device for making a record of the wave forms of fluctuating .

Oscilloscope

""OSCILLOSCOPE An electronic measuring instrument which provides a visual representation of the time variation of electrical quantities, such as voltage or current. It may be used to measure the shape of a voltage pulse or the frequency of an oscillating voltage. It can also be used to measure properties of other physical variables, such as sound or light intensity, if they can be translated into electrical voltage or current.""

Ossification

Osteomalacia

A usually bacterial infection of bone and bone marrow in which the resulting inflammation can lead to a reduction of blood supply to the bone.

Osteoplasty

Osteosarcoma

Ototoxicity

OUTDISTANCE

Outplacement

Outreproduce

Lack of verbal restraint

Exceptionally well

Outstretch

Outwardness

Ovariectomy

Word with prefix over-

Overachiever

ADVERTISE

""AMBITIOUS Possessing, or controlled by, ambition; greatly or inordinately desirous of power, honor, office, superiority, or distinction.""

Overanxiety

Overassert

Overassert

Overassert

CONSCIOUS Possessing the faculty of knowing one's own thoughts or mental operations.

""CONSTRUCT To put together the constituent parts of (something) in their proper place and order; to build; to form; to make; as, to construct an edlifice. as, to construct an edlifice.""

CONSUMING consume

Too credulous.

Overdecorate

Overdesign

Overdiscount

DIVERSITY A state of difference; dissimilitude; unlikeness.

Overdocument

Overeager

Decorate too much

""EMPHASIZE To utter or pronounce with a particular stress of voice; to make emphatic; as, to emphasize a word or a phrase. as, to emphasize a word or a phrase.""

Overengineer

ESTIMATED estimate

Regards too highly

EXERCISED exercise

Overexercise

EXERTIONS exertion

EXPANSION The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.

Overexposure

EXTENSION The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.

FOCUSSING focus

Overharvest

Overidealize

Overimpress

Overimpress

""INGENIOUS Possessed of genius, or the faculty of invention; skillful or promp to invent; having an aptitude to contrive, or to form new combinations; as, an ingenious author, mechanic. as, an ingenious author, mechanic.""

""INSISTENT Standing or resting on something; as, an insistent wall. as, an insistent wall.""

""INTENSITY The state or quality of being intense; intenseness; extreme degree; as, intensity of heat, cold, mental application, passion, etc. as, intensity of heat, cold, mental application, passion, etc.""

Overissuance

Overlengthen

Overlordship

Overmaster

Overmedicate

Overnourish

Overnourish

Overoptimism

Overoptimist

Overorganize

Overornament

PERSUADED persuade

Overpersuade

Overpopulate

""PRESCRIBE To lay down authoritatively as a guide, direction, or rule of action; to impose as a peremptory order; to dictate; to appoint; to direct.""

Overpressure

Overprocess

Overprocess

PROMISING promise

REACTIONS reaction

Overregulate

Overreliance

Overrespond

SATURATED saturate

Oversaturate

""SECRETION The act of secreting or concealing; as, the secretion of dutiable goods. as, the secretion of dutiable goods.""

Too quick to react

Excessively likely to be upset

Overserious

SERVICING service

Appearing more important than

Overslaugh

""SPECULATE To consider by turning a subject in the mind, and viewing it in its different aspects and relations; to meditate; to contemplate; to theorize; as, to speculate on questions in religion; to speculate on political events. as, to speculate on questions in religion; to speculate on political events.""

Overspread

""STABILITY The state or quality of being stable, or firm; steadiness; firmness; strength to stand without being moved or overthrown; as, the stability of a structure; the stability of a throne or a constitution. as, the stability of a structure; the stability of a throne or a constitution.""

Hyperbolist's report

Exaggeration about summary of financial position

Remaining financial record showing extravagance

""STIMULATE To excite as if with a goad; to excite, rouse, or animate, to action or more vigorous exertion by some pungent motive or by persuasion; as, to stimulate one by the hope of reward, or by the prospect of glory. as, to stimulate one by the hope of reward, or by the prospect of glory.""

Overstrain

Overstress

Too thinly spread

Made excessive demands on

Too extended

Overstretch

*... subscapular...

*... subscapular ...

Oversupply

Oversweeten

Oversweet

Overtaxation

Overwithhold

""OVIPOSITION The depositing of eggs, esp. by insects.""

Producing eggs that are hatched in the mother's body

Oxaloacetate

Black and white wader

Pied coastal wading bird

Bird of the seashore