Words That Start With O for Kids

Popular O Words

All Words Starting With O

• oak – An oak is a type of tree that is very strong and can live for a long time.
• oaken – Oaken means something made from oak wood.
• oasis – An oasis is a place in the desert that has water and trees.
• oats – Oats are a healthy grain that people eat.
• obedience – Obedience is when you follow rules or listen to grown-ups.
• obey – Obey means to follow rules or listen to someone in charge.
• object – An object is anything that you can hold or look at, like a book, a car, or a tree.
• objective – An objective is like a goal or something you want to do.
• objectives – Objectives are like goals or things you want to do.
• objects – Objects are items around us that we can hold or use, like a chair, a car, or a pencil.
• obligatory – Obligatory means something you have to do.
• observant – Being observant means you notice things around you.
• observation – Observation means looking at something carefully.
• observe – To observe means to watch something closely.
• observer – An observer is someone who watches things carefully.
• obstacle – An obstacle is something that makes it hard to do something.
• obstruct – Obstruct means to block something.
• obtained – Obtained means to get something.
• obviously – Obviously means something is very clear or easy to see.
• occasionally – Sometimes, but not all the time.
• occur – When something happens or takes place, we say it occurs.
• ocean – The ocean is a huge body of salt water that covers a lot of the Earth.
• octagon – An octagon is a special shape that has eight straight sides and eight corners.
• october – October is the month that comes after September.
• octopus – An octopus is a creature that lives in the ocean.
• odd – Odd means a number that can't be divided by 2 evenly.
• off – Off means that something is not running or not active.
• offense – Offense means when someone does something that hurts or makes another person feel bad.
• offer – An offer is when someone proposes to give you something or help you.
• offering – An offering is when you give something to someone, like a present or a nice thing to show you care.
• official – An official is someone who has a special job, like a teacher or a police officer.
• often – Often means that something happens many times, like when you eat ice cream on weekends.
• ogre – An ogre is a big, strong monster that is usually not nice.
• oil – Oil is a thick liquid that we can use for cooking, like when we fry eggs.
• ok – 'Ok' is a word we use to say yes or that something is alright.
• okay – Okay is a word we use to say that we agree or that something is alright.
• old – Old means something that is not new anymore.
• old-fashioned – Old-fashioned means something that is not new and is from a long time ago.
• omelet – An omelet is a dish made from eggs.
• on – "On" is a word we use to say that something is placed above or in contact with something else.
• one – One is the number that comes before two.
• one-of-a-kind – One-of-a-kind means something is unique and different from everything else.
• only – Only means there is just one thing or person.
• oops – Oops is what we say when we do something wrong by accident, like spilling juice.
• oopsie – Oopsie is a fun way to say you did something wrong by accident, like tripping or forgetting something.
• oopsy – Oopsy is a fun way to say you did something wrong by accident, like tripping or dropping a toy.
• opaque – Opaque means you can't see through something.
• open – Open means to not be closed.
• opener – An opener is a tool that helps you open things.
• opening – An opening is when something is not closed.
• operator – An operator is like a helper that does things for you.
• opportune – Opportune means something that happens at just the right time.
• opportunity – An opportunity is a chance to do something good or fun.
• opposite – Opposite means two things that are completely different.
• opt – Opt means to choose something.
• optimized – Optimized means making something work better or faster.
• option – An option means you can choose between different things.
• options – Options are different choices you can make.
• orange – An orange is a type of fruit that is round and has a bright orange skin.
• orbit – Orbit is the path that a planet or moon takes when it goes around another big object, like how the Earth...
• orchestra – An orchestra is a big group of musicians who play different instruments together.
• order – Order is when you tell someone what you want, like when you ask for a pizza or a book.
• ordered – Ordered means things are arranged in a certain way.
• ordering – Ordering is when you arrange things in a certain way, like putting your books on a shelf from A to Z or...
• orderly – Orderly means everything is arranged nicely and not messy.
• ordinary – Ordinary means something that is not special or different.
• organize – To organize means to arrange things so they are easy to find.
• organized – Organized means things are arranged neatly.
• organizer – An organizer is a tool or a person that helps arrange things neatly.
• organizing – Organizing is when you make things neat and tidy.
• origami – Origami is the art of folding paper into different shapes.
• origin – Origin is the starting point of something.
• original – Original means something that is new and not copied from anything else.
• originality – Originality means being unique or different.
• originate – Originate means to come from somewhere or to start.
• ornament – An ornament is a decoration that you use to make things look beautiful.
• ornaments – Ornaments are special decorations that we use to make places or things look beautiful.
• other – Other means something that is different from what you already have.
• ouch – "Ouch" is a word we use when we feel pain.
• ought – "Ought" means something you should do.
• out – Out means to be outside of something.
• out-of-door – Out-of-door means being outside in nature, like when you go to the playground or have a picnic.
• outback – The outback is a big, wild place in Australia.
• outdated – Outdated means something is old and not used anymore.
• outdoor – Outdoor means things that happen outside, like playing in the sun, going to the beach, or having a picnic.
• outdoors – Outdoors is the area outside of buildings.
• outerwear – Outerwear means the clothes you put on over your regular clothes to keep warm or dry.
• outfit – An outfit is a set of clothes you wear together.
• outfits – An outfit is a set of clothes you put on to look good.
• outfox – Outfox means to be clever and trick someone.
• outgoing – Outgoing is when someone enjoys being around other people.
• outguess – Outguess means to think really hard and try to figure out what someone else is thinking or going to do...
• outlet – An outlet is a place where you can plug in things like a lamp or a phone charger to get power.
• outline – An outline is a way to show the main ideas of something.
• outlying – Outlying means something that is far away from the main part.
• output – Output is what comes out of something.
• outside – Outside is the area that is not inside a building.
• outsmart – Outsmart means to be clever and think of a smart way to do something better than someone else.
• outstanding – Outstanding means something is excellent or amazing.
• outwit – Outwit means to be clever and smart to trick someone or solve a problem.
• oval – An oval is a shape that is like a circle but longer.
• ovate – Ovate means something that is shaped like an egg.
• oven – An oven is a kitchen appliance that heats up to cook food.
• over – Over means higher than something else.
• overcome – To overcome means to get past something that is hard or makes you feel bad.
• overflow – Overflow is when a container is too full and the stuff inside spills out.
• overflowing – Overflowing is when a container, like a cup or a bowl, has too much inside it, and the extra stuff comes out.
• overhead – Overhead means something that is above you.
• overlook – Overlook means to not see something that is there.
• overstate – To overstate means to say something is bigger or more important than it really is.
• overt – Overt means something that is open and easy to see.
• overtake – Overtake means to go past someone or something that is in front of you.
• oviform – Oviform means something that is shaped like an egg.
• ovoid – Ovoid means something that is shaped like an egg.
• ow – "Ow" is a sound we make when we feel pain.
• owie – An 'owie' is a fun way to say that you have a small hurt or pain, like a cut or a bruise.
• owl – An owl is a special kind of bird that is mostly active at night.
• owls – Owls are special birds that are mostly active at night.
• own – 'Own' means that something is yours.
• ownership – Ownership means that something belongs to you.
• oxygen – Oxygen is a gas that we need to breathe.