O — The school dictionary · page 31 2 3 4 5orangShort for orangutan, the large red-haired ape of Borneo and Sumatra.8 sentencesorangeAn orange is a round, juicy fruit with a thick skin; it grows on a tree.13 sentencesorangutanAn orangutan is a large, intelligent ape with long reddish-orange hair and very long arms, which lives in the rainforests of Borneo and Su…9 sentencesorationAn oration is a formal speech, often given at a special ceremony such as a funeral.4 sentencesoratorAn orator is a person who is skilled at making speeches in public.4 sentencesoratoryThe skill of giving powerful, good speeches in public.10 sentencesorbAn orb is a ball or round object, especially one that glows.11 sentencesorbitAn orbit is the curved path of a planet, moon or satellite going around a star or planet.9 sentencesorbitalOrbital means to do with an orbit, the path of something going round a planet, star or moon.10 sentencesorcaAn orca, also called a killer whale, is a large black-and-white sea mammal with a tall back fin; it is actually the biggest member of the…9 sentencesorchardAn orchard is a piece of land with many fruit trees, like apple, pear, cherry or orange trees, often planted in rows.10 sentencesorchestraAn orchestra is a large group of musicians who play many instruments together, such as violins, flutes, trumpets and drums.9 sentencesorchestralTo do with an orchestra or written for an orchestra, a large group of musicians playing strings, woodwind, brass and percussion together.7 sentencesorchidAn orchid is a beautiful flower with petals of unusual shapes; there are many thousands of kinds.12 sentencesordainTo ordain someone is to make them a priest, minister or rabbi in a special religious ceremony.10 sentencesordainedOrdained means made a priest, minister or religious leader in a special ceremony.12 sentencesordealA very hard, painful or frightening experience that goes on for some time.10 sentencesorderOrder is the way things follow one after another: in alphabetical order, in order of size.15 sentencesorderlyOrderly means tidy and well arranged: an orderly desk.9 sentencesordinalAn ordinal number shows the place or position of something in order: first, second, third, fourth and so on.7 sentencesordinarilyUsually; in the normal way.9 sentencesordinaryOrdinary means normal, usual or plain; not special or different.10 sentencesordinateThe y-coordinate of a point on a graph: how far up or down the point is from the x-axis.7 sentencesordinationOrdination is the ceremony in which a person is made a priest, minister, deacon or rabbi, usually by a bishop or other leader.8 sentencesordnanceMilitary weapons, especially large guns, bombs, shells and ammunition.8 sentencesoreOre is rock or earth that has a useful metal in it, like iron or copper, which people dig up and take the metal out of.7 sentencesorganA part of the body that has a special job, like the heart, lungs, brain, stomach or skin.12 sentencesorganicOrganic food is grown or raised without man-made chemicals such as artificial pesticides and fertilisers.12 sentencesorganisationAn organisation is a group of people who work together for a purpose, such as a charity, club, company or school.9 sentencesorganiseTo organise something is to plan and arrange it: organise a party, a trip or a game.10 sentencesorganisedOrganised means tidy and well planned, so things are where they should be and done on time.10 sentencesorganiserA person who plans and arranges an event or activity, like a party, a trip or a sports day.8 sentencesorganismAny living thing, such as an animal, plant, fungus or bacterium.8 sentencesorganizationA group of people who work together for a purpose, such as a charity, a club, a company or a school.9 sentencesorganizedOrganized means put in a neat order, or sorted into groups. She organized her books by size.12 sentencesorientTo find out or work out where you are or which way you are facing, as in "orient yourself with a map".11 sentencesorientalFrom or to do with the countries of East Asia, like China, Japan and Korea.10 sentencesorientationThe direction something faces or points: north, south, up, sideways.10 sentencesorientedOriented means pointed or turned in a certain direction.11 sentencesorigamiThe Japanese art of folding paper into shapes like birds, animals and boxes, usually without cutting or glue.7 sentencesoriginThe origin of something is where or how it began.10 sentencesoriginalFirst; existing at the beginning, before changes: «the original plan».11 sentencesoriginalityOriginality is being new and different, not copied from others.4 sentencesoriginallyAt first; in the beginning, before something changed.9 sentencesoriginateTo begin or come from a place, time or source (the game originated in Scotland).9 sentencesoriginatorThe originator of something is the person who first thought of it, made it or started it.7 sentencesornamentAn ornament is a small object used to make a room, a shelf or a Christmas tree look nice, rather than for a practical use.11 sentencesornamentalOrnamental means used to decorate and make something look nice, rather than for a practical use.8 sentencesorphanAn orphan is a child whose parents have both died.10 sentencesorphanageAn orphanage is a home where children who have no parents live and are cared for.4 sentencesorthodontistA dentist who specialises in straightening teeth and fixing the way teeth and jaws fit together, often by fitting braces.7 sentencesorthodoxOrthodox means following the usual, accepted ideas or ways of doing something.10 sentencesorthographyOrthography is the system of spelling and writing a language: which letters stand for which sounds, and rules for capital letters, hyphens…8 sentencesorthoptistA health professional who checks and treats problems with how the eyes move and work together, such as a squint or a lazy eye.7 sentencesoryxAn oryx is a large antelope of the deserts and dry grasslands of Africa and Arabia, with very long, straight, pointed horns and a pale coa…7 sentencesosOS is short for "operating system", the main program that runs a computer or phone, like Windows, macOS, Android or iOS.10 sentencesoscarAn Oscar is a gold statue given each year as a top prize for films, also called an Academy Award.9 sentencesoscillateTo swing or move back and forth regularly, like a pendulum.9 sentencesoscillatingSwinging or moving back and forth regularly.9 sentencesoscillationA regular movement back and forth, like a pendulum swing.9 sentencesosierA kind of willow tree or bush that grows by rivers and wet ground, with long thin bendy shoots.9 sentencesospreyAn osprey is a large bird of prey with brown wings and a white underside that dives feet-first into water to catch fish.7 sentencesossifiedOssified means turned into bone: soft cartilage that has hardened into bone, as happens in a growing child's skeleton.8 sentencesostentationOstentation is showing off to be noticed, with too much display of wealth or fine things.4 sentencesostlerAn ostler is a man who looked after horses at an inn in the old days.4 sentencesostraciseTo leave someone out of a group on purpose and refuse to talk to them or include them.7 sentencesostracismLeaving someone out on purpose, so they are not included by a group.8 sentencesostrichAn ostrich is a very large bird from Africa that cannot fly but runs very fast on its long, strong legs.11 sentencesotherOther means a different one, not this one.23 sentencesotherwiseOtherwise means «if not» or «or else»: what will happen if something is not done.12 sentencesotoscopeAn otoscope is a small medical tool with a light and a magnifying lens that a doctor uses to look inside your ear.7 sentencesottawaOttawa: the capital city of Canada, in the province of Ontario, on the Ottawa River.9 sentencesotterAn otter is a playful animal with smooth brown fur, short legs, webbed feet and a long tail that lives near rivers or the sea and swims ve…8 sentencesottomanThe Ottoman Empire was a large, long-lasting empire ruled by Turkish sultans from Istanbul, covering Turkey and lands in south-east Europe…10 sentencesounceAn ounce is a small unit of weight; there are 16 ounces in a pound, and an ounce is about 28 grams.5 sentencesouselAn ousel is an old word for a dark bird of the thrush family, such as a blackbird.4 sentencesoustTo oust someone is to force them out of a place, job or position so that they lose it.4 sentencesoutOut means away from the inside of something.24 sentencesoutbackThe outback is the huge, dry, mostly empty land far inland in Australia, far away from the cities and the coast.8 sentencesoutbreakAn outbreak is the sudden start of something bad, such as a disease, a war or violence.10 sentencesoutburstAn outburst is a sudden strong show of feeling, such as anger or laughter, that bursts out.4 sentencesoutcastAn outcast is a person who is not accepted by other people and is pushed out of a group or society.8 sentencesoutcomeAn outcome is the result of something, what happens in the end.11 sentencesoutcropA part of rock that sticks out of the ground or a hillside.8 sentencesoutcryAn outcry is a loud shout of protest, anger or alarm, often from many people together.4 sentencesoutdatedOld-fashioned; no longer used or useful because something newer exists.8 sentencesoutdoTo outdo someone is to do better than them, to beat them at something.4 sentencesoutdoorOutdoor describes things that happen, are used or are found outside, not inside a building, like outdoor games or an outdoor pool.9 sentencesoutdoorsOutdoors means outside, not in a building.10 sentencesouterOuter means on the outside, the part farthest from the middle.12 sentencesoutfitAn outfit is a set of clothes worn together.11 sentencesoutflowWater, air or another substance flowing out of a place.9 sentencesouthouseAn outhouse is a small building outside a main house, such as a shed or a store.4 sentencesoutingA short trip out for fun, often with a group, such as a class going to a zoo or museum.12 sentencesoutlandishOutlandish means strange and odd, unlike what is usual, often from a far-off foreign land.4 sentencesoutlastTo last longer than something else: to keep going or keep working after the other has stopped.9 sentencesoutlawA person who has broken the law and is running away from it, especially in old stories.9 sentencesoutletAn outlet is a way for something, such as water or gas, to get out.10 sentencesoutlineAn outline is a line that shows the shape or edge of something.11 sentencesoutliveTo live longer than someone else.8 sentences1 2 3 4 5This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/3/