oncost
Additional costs; extra expenses.
Overhead (expense)
The cost of upkeep, making and maintaining shafts, roads, pumping, etc.
The indirect expenditure incurred for the purpose of increasing the productive power of organised labour.

oncosts
plural of oncost

oneupmanship
Alternative spelling of one-upmanship.

ongang
A start-up; beginning; commencement (of activity, work, machinery, etc.); a setting in motion.
Rowdy or unrestrained behaviour; antics.

onside
Not in an offside position; In the part of the playing area where one can legally play the ball, puck, etc.
Within bounds.
On the side of a vehicle from which the driver, paddler, etc. propels it.
Favourably located, from the point of view of the player taking a finesse.
In agreement or support; on board.

onsides
Onside: in a legal position with respect to the ball and boundaries

oolak
An Indian boat for transporting freight.

oolaks
plural of oolak

oolock
Alternative form of oolak.

oolocks
plural of oolock

oomiac
Alternative spelling of umiak.

oomiack
Alternative spelling of umiak.

oomiacks
plural of oomiack

oomiacs
plural of oomiac

oomiak
Alternative spelling of umiak.

oomiaks
plural of oomiak

oozie
In Myanmar, an elephant trainer or mahout.

oozies
plural of oozie

opaquers
plural of opaquer

operatorships
plural of operatorship

ophiolater
A snake-worshipper.

ophiolaters
plural of ophiolater

opifice
workmanship

opifices
plural of opifice

opthaldehyde
ortho-phthalaldehyde

option
One of a set of choices that can be made.
The freedom or right to choose.
A contract giving the holder the right to buy or sell an asset at a set strike price; can apply to financial market transactions, or to ordinary transactions for tangible assets such as a residence or automobile.
The acquiring or retention of a nationality through personal choice as a right, bypassing selective legal mechanisms for naturalization, especially in cases where a territory is transferred or passed on from one state to another.

options
plural of option

oralcare
The care and hygiene of the mouth.

oratiuncle
short speech or oration

oratiuncles
plural of oratiuncle

oratorships
plural of oratorship

orature
The oral equivalent of literature: a collection of traditional folk songs, stories, etc., that is communicated orally rather than in writing.

oratures
plural of orature (“oral equivalent of literature”)

orderboard
A movable signal indicating whether or not there are train orders to be picked up.

orderboards
plural of orderboard

oreboats
plural of oreboat

organistships
plural of organistship

organoborane
Any organic compound containing a carbon-to-boron bond.

organoboranes
plural of organoborane

organoborate
Any organic compound containing a carbon-to-borate bond.

organolithium
Describing any organic compound containing a carbon to lithium bond.

organolithiums
plural of organolithium

organometalloid
A molecule with at least one bond between a carbon atom and a metalloid.

organosilene
a molecule containing a silicon atom doubly bonded to a carbon atom

organosilenes
plural of organosilene

organotelluride
Any telluride that has a carbon-to-tellurium bond.

organyl
any univalent radical having its free valence at a carbon atom

organyls
plural of organyl

orgia
plural of orgion

orgion
An ecstatic form of worship characteristic of some Ancient Greek mystery cults.

orientee
Synonym of trainee: a new employee undergoing a probation period of training and evaluation ("orientation").

orientees
plural of orientee

origines
plural of origo

origo
The reference point on which a deictic relationship is based.

origos
plural of origo

orlop
The platform over the hold of a ship that makes up the fourth or lowest deck, hence in full called orlop deck, especially of a warship.

orlops
plural of orlop

ornithopter
An aircraft that generates lift through the flapping of its wings.

ornithopters
plural of ornithopter

orphanships
plural of orphanship

orthodata
Constraints or assessments applied to transactional or warehoused data to assure data quality.

orthopter
Any insect of the order Orthoptera
Synonym of ornithopter.

orthopters
plural of orthopter

orthotaxa
plural of orthotaxon

orthotaxon
A true taxon that is based on biological relationships rather than on form.

orthotope
The generalization of a rectangle for higher dimensions, formally defined as the Cartesian product of intervals.

orthotopes
plural of orthotope

osmophile
Any organism that is adapted to living in aqueous environments with high solute concentrations (salt, sugar, alcohol), and resisting internal desiccation caused by the osmotic transport of water outside of their cells

osmophiles
plural of osmophile

osteoarthritides
plural of osteoarthritis

osteoarthritis
A form of arthritis, affecting mainly older people, caused by chronic degeneration of the cartilage and synovial membrane of the joints, leading to pain and stiffness.

osteoarthritises
plural of osteoarthritis

osteocrania
plural of osteocranium

osteocranium
The bony cranium, as distinguished from the cartilaginous cranium.

ostler
A person employed at an inn, hostelry, or stable to look after horses; a groom.

othala
Alternative form of odal.

othalas
plural of othala

otherlinks
plural of otherlink

ots
plural of ot

ouid
Filter-avoidance spelling of weed (“marijuana”).

outbase
A minor storage depot used to back up the transport and delivery operations from the main depot.

outbases
plural of outbase

outboard
Situated outside the hull of a vessel.
Positioned away from the centre line of a ship or aircraft.
Being or relating to an external effects unit such as compressor or equalizer.

outboards
plural of outboard

outbound
Leaving or departing; traveling away from; outward bound.

outbounds
plural of outbound

outcar
A car completely outside of any garage, or the portion of a car that is not inside a garage.

outcars
plural of outcar

outerchange
A connection between two stations within walking distance of each other but which are not physically connected; used especially where a journey involving such a connection can be done on a single ticket.

outerchanges
plural of outerchange

outfeed
A conveyor that pulls split firewood away from the processor and into a waiting vehicle or pile for later handling.

outfeeds
plural of outfeed

outlinks
plural of outlink

outporch
An exterior porch.

outporches
plural of outporch

outrigger
Any of various projecting beams or spars that provide support for a sailing ship's mast.
A long thin timber, pontoon, or other float attached parallel to a canoe or boat by projecting struts as a means of preventing tipping or capsizing.
An outrigger canoe or boat.
An iron bracket or brace for an oarlock projecting from the side of a rowing boat.
An extension mechanism, often retractable when not in use, on a boat, vehicle, or structure which helps to stabilize it to keep it from tipping over.
A type of ski pole, with skis attached at the bottom, instead of the spike/pick found on a normal pole. It is used in downhill skiing variants of para-skiing, especially those that use a sit-ski, such as the monoski.

outriggers
plural of outrigger

outroad
An excursion.
A foray into an enemy's territory, especially a hostile attack.
A way out from a place or situation.

outrode
simple past of outride

ov
Alternative spelling of of.

overcard
A card higher than any other card or pair. Often used in reference to the community cards in Texas hold 'em

overcards
plural of overcard

overcarriage
The transportation of cargo beyond its intended destination.

overcarriages
plural of overcarriage

overclasses
plural of overclass

overflight
The flight of an aircraft over a particular place; used especially to refer to a flight over foreign or enemy territory.

overflights
plural of overflight

overground
Above the ground.
Mainstream, not underground.

overgrounds
plural of overground

overhead
Located above, especially over the head.
Kicked over one's own head.