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off-color

humorously vulgar; mildly obscene; risque; as, an off-color joke.

off-day

A day when things go poorly; as, I guess this is one of my off-days.

off-duty

not performing or available for duties at the given moment; as, an off-duty policeman. Oposite of on-duty, working, and on-the-job.

off-guard

not watching for possible danger; not alert; as, caught in an off-guard moment.

off-key

Deviating from the proper pitch; -- of a musical note or series of notes; as, an off-key note; to sing off-key.

off-licence

a store that sells alcoholic beverages for consumption elsewhere.

off-limits

barred to a designated group; as, the topless bar is off-lints to military personnel.

off-line

Not connected; -- of computers or computer peripherals normally connected or intended to be connected to other computers by a communications line; as, we can't print the document because the printer is off-line.

off-peak

Having less than maximal use or demand or activity; -- of a period of time occurring as a defined part of a time cycle; as, off-peak telepone rates are available at night and on weekends; off-peak fares.

off-road

designed for or used for or taking place on trails and beaches etc., instead of public roads; as, off-road vehicles; off-road sports such as snowmobiling.

off-roader

a bicycle with a sturdy frame and fat tires; originally designed for riding in mountainous country; amountain bike.

off-season

of or relating to a season of less than maximum demand; as, off-season hotel rates are lower.

off-site

Taking place or located away from the specified site; as, an off-site waste treatment operation. Opposite to on-site.

off-street

Not performed on the streets; as, off-street parking; off-street unloading of vehicles. Opposite of on-street.

off-the-cuff

with little or no preparation or forethought; unrehearsed; extemporaneous; offhand.

off-the-rack

Intended to be worn without alterations; ready-to-wear; -- of clothing. Contrasted with made-to-order, custom-made.

off-the-shelf

Made in large quantities and intended to be used without modifications; -- similar to off-the-rack, but not restricted to clothing. Opposite of custom-made, made-to-order, or one-of-a-kind.

offal

The rejected or waste parts of any process, especially the inedible parts of a butchered animal, such as the viscera.

Offence Offense

The act of offending in any sense; esp., a crime or a sin, an affront or an injury.

offenceless

incapable of offending or attacking; harmless.

Offend

To transgress the moral or divine law; to commit a crime; to stumble; to sin.

Offender

One who offends; one who violates any law, divine or human; a wrongdoer.

Offenseful

Causing offense; displeasing; wrong; as, an offenseful act.

Offensive

The state or posture of one who offends or makes attack; aggressive attitude; the act of the attacking party; -- opposed to defensive.

Offer

The act of offering, bringing forward, proposing, or bidding; a proffer; a first advance.

Offerable

Capable of being offered; suitable or worthy to be offered.

Offerer

One who offers; esp., one who offers something to God in worship.

Offering

The act of an offerer; a proffering.

Offertory

The act of offering, or the thing offered.

Offhand

Instant; unprepared; ready; extemporaneous; unrehearsed; as, an offhand speech; offhand excuses; an offhand comment. In an offhand manner; as, he replied offhand.

Office

To perform, as the duties of an office; to discharge.

Officeholder

One who holds an office; an officer, particularly one in the civil service; a placeman.

Officer

To furnish with officers; to appoint officers over.

Official

One who holds an office; esp., a subordinate executive officer or attendant.

officialdom

The body of all people elected or appointed to administer a government, taken collectively.

officialese

the formal and often obscure style of writing characteristic of some government officials; bureaucratese; -- it is characterized by euphemisms, circumlocutions, vague abstractions, and circumlocutions.

Officialism

The state of being official; a system of official government; also, adherence to office routine; red-tapism.

officialize

to render official; as, we officialized our relationship.

Officially

By the proper officer; by virtue of the proper authority; in pursuance of the special powers vested in an officer or office; as, accounts or reports officially verified or rendered; letters officially communicated; persons officially notified.

Officialty

The charge, office, court, or jurisdiction of an official.

Officiant

The officer who officiates or performs an office, as the burial office.

Officiary

Of or pertaining to an office or an officer; official.

Officiate

To discharge, perform, or supply, as an official duty or function.

Officious

Pertaining to, or being in accordance with, duty.

Offing

That part of the sea at a good distance from the shore, or where there is deep water and no need of a pilot; also, distance from the shore; as, the ship had ten miles offing; we saw a ship in the offing.

Offish

Shy or distant in manner; aloof; stand-offish.

Offlet

A pipe to let off water.

Offscouring

That which is scoured off; hence, refuse; rejected matter; that which is vile or despised.

Offscum

Removed scum; refuse; dross.

offset printing

A printing technique in which a lithographic image on an inked metal or stone plate is transferred first to a rubber sheet (usually on a cylinder) before transfer to the paper. Called also offset lithography.

Offshoot

That which shoots off or separates from a main stem, channel, family, race, etc.; as, the offshoots of a tree.

Offshore

From the shore; as, an offshore wind; an offshore signal.

offsides offside

Illegally beyond a prescribed line or area or ahead of the ball or puck; -- in sports such as football or hockey; as, the touchdown was nullified because the left tackle was offside.

Offskip

That part of a landscape which recedes from the spectator into the distance.

Offtake

Act of taking off; specif., the taking off or purchase of goods.

Oft

Frequent; often; repeated.

Often

Frequent; common; repeated.

ogdoad

A thing made up of eight parts.

Ogham

A particular kind of writing practiced by the ancient Irish, and found in inscriptions on stones, metals, etc.

Ogive

The arch or rib which crosses a Gothic vault diagonally.

Ogle

An amorous side glance or look.

Ogre

An imaginary monster, or hideous giant of fairy tales, who lived on human beings; hence, any frightful giant; a cruel monster.

Ogreish

Resembling an ogre; having the character or appearance of an ogre; suitable for an ogre.

Ogygian

Of or pertaining to Ogyges, a mythical king of ancient Attica, or to a great deluge in Attica in his days; hence, primeval; of obscure antiquity.

Oh

An exclamation expressing various emotions, according to the tone and manner, especially surprise, pain, sorrow, anxiety, or a wish. See the Note under O.

Ohm

The standard unit in the measure of electrical resistance, being the resistance of a circuit in which a potential difference of one volt produces a current of one amp/re. As defined by the International Electrical Congress in 1893, and by United States Statute, it is a resistance substantially equal to 109 units of resistance of the C. G. S. system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the international ohm.

Ohmmeter

An instrument for indicating directly the electrical resistance of a circuit in ohms.

Oho

An exclamation of surprise, etc.

Oidium

A genus of minute fungi which form a floccose mass of filaments on decaying fruit, etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera, among them the vine mildew (O/dium Tuckeri), which has caused much injury to grapes.

Oil

To smear or rub over with oil; to lubricate with oil; to anoint with oil.

oil patch

A geographical region from which petroleum is extracted.

oil slick

A layer of oil floating on water; -- usually petroleum or fuel oil which has leaked from a ship.

oil spill

A layer of oil floating on water or covering the shoreline of a body of water; -- usually petroleum which has leaked from an oil tanker.

oil tanker

A ship having large compartments, designed to transport crude oil over the ocean.

oil well

A well{3} from which petroleum is or has been extracted; a well{3} drilled deeply into an oil-bearing geological formation specifically for the purpose of obtaining petroleum.

oil-bearing

containing oils; -- of geological formations; as, oil-bearing shale.

oil-fired

Using oil as a fuel; as, an oil-fired furnace.

oil-silk

Silk treated with oil to make it water-tight; -- it is used to make raincoats.

oilcan

A small can with a long spout used to apply oil to machinery, for purposes of lubrication.

oilcloth

Cloth rendered waterproof by treatment with oil or paint, and used for marking garments, covering tables, shelves, floors, etc.

oiled

Covered or treated with oil; dressed with, or soaked in, oil.

Oiler

One who deals in oils.

Oilery

The business, the place of business, or the goods, of a maker of, or dealer in, oils.

oilfish

A very large deep-water snake mackerel (Ruvettus pretiosus).

Oillet

A small opening or loophole, sometimes circular, used in mediaeval fortifications. A small circular opening, and ring of moldings surrounding it, used in window tracery in Gothic architecture.

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