O - Letter O - Words that begin with the Letter O

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Upper Case Capital Letter O 

Lower Case Letter  o

Speak Letter - Mouse over the Letter O (ow)

Hand Write Letter - Mouse over diagram on right >

Sound Phonics: a, e, i, o, u, and sometimes y

The Letter O is the 15th letter of the English Alphabet. Word Class.

Important Words that begin with the Letter O

Organize is to gather things together in a easy to understand arrangement that would make things easier to find and also too learn from. A correct order or placement of things in a specific location.

Option is having more the one choice or having another alternative that would help solve a problem or help make a better decision.

Or introduces an alternative. (What would you rather have, this one or that one?).

Oar is a long sturdy paddle or pole with a flat blade on one end that is used to propel or steer a boat through water.

Opportunity is having a choice or an option to do something valuable or beneficial. An opportunity is having a possibility due to a favorable combination of circumstances, like being in the right place at the right time, and having the knowledge and skills that are needed to take advantage of an opportunity when it appears, and having the ability to know the difference between an opportunity and a bad decision.

Offer is to present something for consideration and make it available or accessible to either accept it or to reject it.

Our is something belonging to us. (That is our constitution. That is our home.)

Owner is the legal possessor of some thing. Someone who has documented claims over a particular object that was rightfully acquired through first possession or from a voluntary exchange.

Obtain is to receive and come into possession of something. To get something and to hold on to or keep.

Outcome is the result caused by some previous action.

Oscillate is when something moves up or down or swings from side to side at repetitive intervals or moments in time.

Oscillation is the repetitive variation, typically in time, of some measure about a central value often a point of equilibrium or between two or more different states. The term vibration is used to describe mechanical oscillation. Oscillations occur not only in mechanical systems but also in dynamic systems. Examples of oscillation include a swinging pendulum, alternating current, beating of the human heart, cycles in ecology, vibrating strings in musical instruments, and periodic firing of nerve cells in the brain.

Observer is a a person who becomes aware of things or events through the senses. An expert who observes and comments on something.

Optical involves the physical action of light or optics using sight or eyes. Light is the visible part of the electromagnetic spectrum.

Optics is the branch of physics that studies the physical properties of light and the behavior of visible, ultraviolet, and infrared light. Light bends as it passes through glass that has either a concave or convex shaped lens, like in a telescope or microscope or in the thickness of eye glasses. Lens produces converging or diverging light rays due to refraction is known as a lens.  Lenses are characterized by their focal length. A converging lens has positive focal length, while a diverging lens has negative focal length.

Optimize is to get the most out of something by using it in the best way possible in order to achieve maximum efficiency, capacity, time or cost.

Optimal is the most that you can receive and get in return, or the most that you can give or input at a given time. How low or how high something will go, or how fast or how slow something will go, and so on.

Operate is to direct or control and handle something and cause something to function or to perform a movement or action. Operate also means to perform surgery on a patient.

Overcome is when you don't give up and you work hard so that you can successfully win a victory over a major struggle and be able to live through a very difficult problem or situation that is really hard to handle and not easy to deal with. (The reason why humans are still living today is because billions of humans in our past history overcame many struggles in order to survive.)

Optimism is looking on the bright side of things and staying positive that things will turn out good and eventually get better as long as you keep trying and don't give up. Optimism is the opposite of pessimism which is when people constantly complain about problems and see everything as being negative, bad and wrong, so much that they stop enjoying life, stop trying and become angry or depressed. An optimist will look for ways to solve problems, while a pessimist will mostly just complain about problems and focus mostly on all the bad things while ignoring all the good things they can be doing. Confidence.

Original is the first one made of its kind since the earliest beginning. Original is something that is not secondhand and is not developed from something else or copied from something else.

Organic is something that is naturally made that is free of harmful toxins, pesticides or hormones.

Oath is a commitment to tell the truth and a promise to follow the law and show good behavior and to respect everyone.

Official is something or someone having a verified and clearly expressed approval, permission and authorization that adheres to a set of rules, responsibilities and procedures for proper usage.

Order is a logical or comprehensible sequential arrangement of separate elements that are organized in a particular way. Order can also mean a request for something to be made, supplied, or served. Order can also mean a command that gives instructions to someone or directs someone to do something with authority.

Objective is making a judgment based on facts by looking at things without any distortion from personal feelings, or without the insertion of fictional matter or personal interpretations. Objective is the opposite of subjective which is making a judgment based on personal impressions, feelings and opinions rather than external facts. Objective can also mean a goal that is intended to be achieved or reached.

Opinion is a personal belief or judgment that is not founded on proof or certainty. A vague idea about what may be true. A guess.

Open-Minded is the ability to consider, understand and listen to new ideas or reasons without being prejudice or bias. It's  respecting other peoples views and beliefs that differ from your own. Being open-minded is knowing that you can make mistakes and misunderstand things, especially when you make assumptions or jump to conclusions. Open minded is better then being closed minded because learning is always better then not knowing or being ignorant.

Open is an entrance or exit that allows passage, vision or access in and out. Open is when something is not shut, closed or locked.

On is when something is operational and working, or when something is planned or scheduled. On can also mean when something is in contact with or on top of something.

Orientation is to determine one's position with reference to another point. To use specific directions when navigating. A reference system for determining your bearings physically or intellectually. Orient is to familiarize oneself with new surroundings or circumstances. Orientation also means an integrated set of attitudes and beliefs in regards to personal relationships and identity.

One is an individual solo person or a single unit or thing that is not zero or none and is not two or more. One is the smallest whole number or a numeral. (1)

Oxygen is a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas. Oxygen constitutes 21 percent of the atmosphere by volume andis the most abundant element in the earth's crust. (Atomic Number 8 - O).

Ocean is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean. The 5 oceans are the Atlantic Ocean, Arctic Ocean, Indian Ocean, Pacific Ocean and Southern Ocean.

Overflow is a surplus liquid that exceeds the limit or capacity of something and becomes over filled and then runs over or spills over the top edge of a vessel or container.

Over is when something is beyond or above a higher position. Over can also mean on top of something or covering something.
Over can also mean when something has ended or has come to a conclusion.

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