📖 O — The English dictionary · page 10

ooh — Everyday, meaning 1: Ooh is a sound people make to show surprise, delight, interest or admiration.↗ Everyday, meaning 2: Ooh can show pain or worry, as when something hurts or looks dangerous.↗ Everyday, meaning 3: «Oohs and aahs» means sounds of wonder from a crowd.↗ Example: Ooh, look at those fireworks!↗ · Ooh, is that chocolate cake?↗ · Ooh, that must have hurt!↗ · The crowd oohed and aahed at the acrobats.↗ · Ooh, I've just had a brilliant idea.↗ · «Ooh,» said Gran, «what a lovely surprise!»↗ · "Ooh! the stone, the great big stone! ooh! the stones on top!"↗

oolong — Everyday, meaning 1: A kind of Chinese tea, partly oxidised, between green tea and black tea in taste and colour.↗ Example: Grandpa drinks oolong tea after dinner.↗ · Oolong is between green tea and black tea.↗ · We tasted oolong at the Chinese New Year festival.↗ · The tea shop sells a dozen kinds of oolong.↗ · Oolong leaves are often rolled into small balls.↗ · Oolong tea comes from China and Taiwan.↗

ooze — Everyday, meaning 1: verb (of a thick liquid) To flow out slowly: «Honey oozed from the jar».↗ Everyday, meaning 2: verb To show a lot of a quality: «He oozes confidence».↗ Everyday, meaning 3: noun Soft, wet mud, especially at the bottom of a sea, lake or river.↗ Example: Jam oozed out of the doughnut.↗ · Green slime oozed from the monster's mouth.↗ · Mud oozed between my toes.↗ · Blood oozed from the cut.↗ · The singer oozed confidence on stage.↗ · The sea floor is covered with soft ooze.↗

oozing — Everyday, meaning 1: Oozing means slowly flowing or leaking out of something, like thick liquid.↗ Everyday, meaning 2: Oozing with a quality means showing a lot of it: «oozing confidence».↗ Everyday, meaning 3: As an adjective, oozing describes something that is slowly leaking: an oozing wound.↗ Example: Mud was oozing between my toes.↗ · Sap was oozing from the cut tree.↗ · The cake was oozing chocolate in the middle.↗ · Tell an adult if a cut keeps oozing.↗ · Lava came oozing down the side of the volcano.↗ · The new boy was oozing confidence on his first day.↗ · Toothpaste was oozing out of the tube.↗ · Honey kept oozing from the jar.↗ · Placing one under each roasting duck, he muttered, “The sweet fat oozing out will taste well with the hard-cooked breasts.”↗

opal — Everyday, meaning 1: An opal is a precious stone that shows flashing rainbow colours when you move it in the light.↗ Everyday, meaning 2: Opal is the material itself, a kind of hardened silica that contains water.↗ Everyday, meaning 3: Opal is also a milky, pale colour.↗ Example: Nan has an opal ring that sparkles blue and green.↗ · Most of the world's opals come from Australia.↗ · In Coober Pedy, miners dig for opal and some families live in underground houses.↗ · The black opal is Australia's national gemstone.↗ · When I tilted the opal, colours flashed like a tiny rainbow.↗ · Opals contain water, so they can crack if they dry out.↗ · The bathroom glass had a milky opal colour.↗ · It is more precious than emeralds, and dearer than fine opals.↗

opaque — Everyday, meaning 1: Opaque means light cannot pass through it, so you cannot see through it, like wood or a brick wall.↗ Everyday, meaning 2: Hard to understand; not clear (used about words or ideas).↗ Example: A brick is opaque.↗ · Opaque objects block light and make shadows.↗ · We tested which materials were transparent, translucent or opaque.↗ · The bathroom window has opaque glass so nobody can see in.↗ · Put the seeds in an opaque box to keep them in the dark.↗ · Her answer was so opaque that nobody understood it.↗ · Is aluminium foil opaque?↗

open — Everyday, meaning 1: To open is to move something so you can go in or see inside: open a door, open a box.↗ Everyday, meaning 2: Open means not closed.↗ Everyday, meaning 3: A shop or place is open when people can go in and use it.↗ Everyday, meaning 4: Open means not covered or not fenced in: the open sea, open fields.↗ Everyday, meaning 5: To open can mean to start: «The show opens on Friday».↗ Example: She opens a box with 12 crayons.↗ · The shop opens at 9 and closes at 5.↗ · How many hours is the shop open?↗ · He opened 3 presents.↗ · Please open your books at page 10.↗ · The window is open, so it is cold.↗ · A circle is a closed shape, but a «C» is open.↗ · The new library opens next month.↗ · Do not open the door to strangers.↗ · At midnight the cottage door opened.↗ · This shall be to them the open land about the cities.↗ (Torah NUM.35.5, JPS 1917)↗ · And God remembered Rachel, and God hearkened to her, and opened her womb.↗ (Torah GEN.30.22, JPS 1917)↗ · And every open vessel, which hath no covering close-bound upon it, is unclean.↗ (Torah NUM.19.15, JPS 1917)↗ · Who can open the doors of his face?↗ (Writings JOB.41.6, JPS 1917)↗ · Then open the door, and flee, and tarry not.'↗ (Prophets 2KI.9.3, JPS 1917)↗ · Better is open rebuke than love that is hidden.↗ (Writings PRO.27.5, JPS 1917)↗

opener — Everyday, meaning 1: An opener is a tool for opening something, such as a tin opener, can opener or bottle opener.↗ Everyday, meaning 2: The opener is the first thing in a series: the first game of a season, the first song of a show, or the first words of a talk.↗ Everyday, meaning 3: (sport) In cricket, an opener is one of the two batters who bat first.↗ Everyday, meaning 4: An eye-opener is something that surprises you and teaches you something new.↗ Example: Pass me the tin opener so I can open the beans.↗ · Be careful: a can opener leaves sharp edges.↗ · Our team won the season opener 3–1.↗ · The openers scored fifty runs before the first wicket fell.↗ · Start your story with a strong opener to hook the reader.↗ · The school trip to the farm was a real eye-opener.↗ · The band played their best song as the opener.↗

opening — Everyday, meaning 1: An opening is a gap or hole that something can pass through.↗ Everyday, meaning 2: An opening is the start of something, such as a story, film, game or match.↗ Everyday, meaning 3: An opening is a chance or a free job or place, such as a job opening.↗ Everyday, meaning 4: The opening of a shop, bridge or show is the event when it first starts to be used.↗ Everyday, meaning 5: Opening is the -ing form of open: making something open.↗ Example: The mouse squeezed through a small opening in the fence.↗ · The opening of the story begins with a storm.↗ · The shop's opening hours are nine to five.↗ · The Olympic opening ceremony was full of fireworks.↗ · There is a job opening at the library.↗ · She is opening her birthday presents.↗ · The striker saw an opening and scored.↗ · Write an opening sentence that makes the reader curious.↗ · She saw an opening that led into the depths below.↗ · Seeing many things, thou observest not; opening the ears, he heareth not.↗ (Prophets ISA.42.20, JPS 1917)↗ · The opening of Thy words giveth light; it giveth understanding unto the simple.↗ (Writings PSA.119.130, JPS 1917)↗ · Hear, for I will speak excellent things, and the opening of my lips shall be right things.↗ (Writings PRO.8.6, JPS 1917)↗

openly — Everyday, meaning 1: Openly means in a way that everyone can see or hear, not secretly.↗ Everyday, meaning 2: Openly means honestly, without hiding your feelings or thoughts.↗ Example: She talked openly about her worries.↗ · He openly admitted he broke the vase.↗ · The children laughed openly at the joke.↗ · You can speak openly to your teacher.↗ · They openly disagreed in front of the class.↗ · The fox walked openly across the field in daylight.↗ · Talk openly with your family about online safety.↗ · The twins openly shared their sweets.↗ · Now the Bat family had not openly joined either side.↗

opera — Everyday, meaning 1: An opera is a play in which the actors sing almost all the words, with an orchestra playing music.↗ Everyday, meaning 2: Opera is this kind of music and theatre in general.↗ Everyday, meaning 3: An opera house is the building where operas are performed.↗ Everyday, meaning 4: An opera box is a small private section of seats in a theatre, where people sit to watch the performance.↗ Example: We watched a short opera about a magic flute in music class.↗ · The opera singer sang so loudly the whole hall rang.↗ · My nan loves opera and plays it in the kitchen.↗ · The Sydney Opera House has a roof shaped like sails.↗ · In an opera, even the arguments are sung.↗ · Our class wrote a tiny opera about a lost lunchbox.↗ · Mum watches a soap opera every evening.↗ · "At home," said she, "my windows must be my opera-box.↗

operate — Everyday, meaning 1: To operate a machine is to make it work or control it.↗ Everyday, meaning 2: To operate means to work or run.↗ e.g. The buses operate every ten minutes.↗ Everyday, meaning 3: A doctor operates when he or she cuts into a patient's body to fix something.↗ Everyday, meaning 4: To operate means to run a business or organisation.↗ Everyday, meaning 5: In old tales, to operate can mean to use magic or secret power to make something happen.↗ Example: Only an adult should operate the lawnmower.↗ · The trains operate every fifteen minutes.↗ · The doctor had to operate on her knee.↗ · How do you operate this remote control?↗ · The shop operates seven days a week.↗ · The robot is operated by a computer.↗ · Choose the right operation: add or multiply?↗ · The bagpiper announced that he would operate that very evening when the moon rose.↗

operatic — Everyday, meaning 1: To do with opera, plays where all or most of the words are sung, with an orchestra.↗ Everyday, meaning 2: Very dramatic and over-the-top, as in "an operatic display of tears".↗ Example: She has a powerful operatic voice.↗ · The operatic singer hit the highest note perfectly.↗ · Our school performed an operatic version of "Cinderella".↗ · He gave an operatic sigh when told to tidy his room.↗ · The film had operatic music in the big battle scene.↗ · An aria is an operatic song for one singer.↗

operating — Everyday, meaning 1: Working or running, said of a machine or business.↗ Everyday, meaning 2: Making a machine work; controlling it.↗ Everyday, meaning 3: Doing a medical operation, cutting into a body to fix it.↗ Everyday, meaning 4: Used for the work of a hospital operation or of a computer: an operating theatre, an operating system.↗ Example: The lift is not operating today, so use the stairs.↗ · Only trained adults should be operating the lawnmower.↗ · The surgeon is operating on my grandad's knee.↗ · Our library's operating hours are nine to five.↗ · The new operating system made the laptop faster.↗ · The ferry is operating on a winter timetable.↗ · When you are operating on fractions, find a common denominator first.↗

operation — Everyday, meaning 1: In maths, an operation is a way of working with numbers: add, subtract, multiply or divide.↗ Everyday, meaning 2: An operation is when a doctor (a surgeon) fixes something inside the body.↗ Everyday, meaning 3: An operation is a planned piece of work done by many people: a rescue operation.↗ Example: Today we practise all four operations together.↗ · Which operation do we use here?↗ · This problem needs two operations.↗ · Adding and subtracting are opposite operations.↗ · Grandpa had an operation on his knee.↗ · The doctors did the operation in the morning.↗ · A big rescue operation found the lost hikers.↗ · Here is another instance of a life-giving operation of a double nature.↗ · The Thirty-second Path is the Administrative Intelligence, and it is so called because it directs and associates, in all their operations, the seven planets, even all of them in their own due courses.↗ (Sefer Yetzirah, Westcott 1887)↗ · The Thirty-second Path is the Administrative Intel- ligence, and it is so called because it directs and asso- ciates in all their operations the seven planets, even all of them in their own due courses.↗ (Sefer Yetzirah, Westcott 1893)↗ · Because they give no heed to the works of the LORD, nor to the operation of His hands; He will break them down and not build them up.↗ (Writings PSA.28.5, JPS 1917)↗ · And the harp and the psaltery, the tabret and the pipe, and wine, are in their feasts; but they regard not the work of the LORD, neither have they considered the operation of His hands.↗ (Prophets ISA.5.12, JPS 1917)↗

operative — Everyday, meaning 1: Working, in action: «The new system is now operative.».↗ Everyday, meaning 2: (noun) A worker, especially one who works machines in a factory.↗ Everyday, meaning 3: (noun) A secret agent or spy.↗ Everyday, meaning 4: To do with a medical operation: «post-operative care».↗ Example: The new lift will be operative from Monday.↗ · The factory hired ten more operatives.↗ · The spy film followed a secret operative in Paris.↗ · «Free» was the operative word in the advert.↗ · After his operation Grandad needed post-operative care.↗ · The rules became operative at the start of term.↗

operator — Everyday, meaning 1: A person who works a machine or equipment: «a crane operator».↗ Everyday, meaning 2: A person who answers phone calls and connects people, like an emergency operator.↗ Everyday, meaning 3: A company that runs a service: «a tour operator», «a mobile phone operator».↗ Everyday, meaning 4: (maths) A symbol for an operation, like + − × ÷.↗ Example: The emergency operator asked for our address.↗ · The crane operator lifted the steel beams.↗ · In 5 + 3, the operator is the plus sign.↗ · Choose the right operator to make the sum true: 6 _ 2 = 12.↗ · The tour operator organised our trip.↗ · Stay calm and listen to the operator.↗

opinion — Everyday, meaning 1: An opinion is what you think or believe about something; it may not be the same as what others think.↗ Everyday, meaning 2: An opinion is advice or a judgement from an expert, like a doctor's opinion.↗ Example: In my opinion, dogs are better than cats.↗ · Everyone is allowed their own opinion.↗ · Is that a fact or an opinion?↗ · What's your opinion of the new playground?↗ · They have different opinions about the film.↗ · The doctor wanted a second opinion.↗ · Give your opinion and a reason for it.↗ · Which pizza is best is a matter of opinion.↗ · "That is your opinion," said the apple-bough.↗ · This opinion, however, he afterwards revoked.↗ (See Dr. Graetz's "History of the Jews," Vol. (Sefer Yetzirah, Kalisch 1877)↗ · 32) According to the opinion of the author, it may be arranged as follows: (Sefer Yetzirah, Kalisch 1877)↗ · The opinions of Hebrew Kabalistic Rabbis and of two French mystics may be fitly introduced here.↗ (Sefer Yetzirah, Westcott 1893)↗ · Therefore I say: 'Hearken to me; I also will declare mine opinion.'↗ (Writings JOB.32.10, JPS 1917)↗ · I also will answer my part, I also will declare mine opinion.↗ (Writings JOB.32.17, JPS 1917)↗ · And Elihu the son of Barachel the Buzite answered and said: I am young, and ye are very old; wherefore I held back, and durst not declare you mine opinion.↗ (Writings JOB.32.6, JPS 1917)↗