Words that start with O

An outline is a type of drawing where thin lines are used to define the edges of what you are drawing a picture of. Artists often start a picture by drawing the outline in lead pencil, and then coloring or shading it in. An outline is also the way of describing an event or situation by giving only the most essential details, as in "here's an outline for Monday's telecast".

Outstretch means to spread out or expand some part of your body. The man in the picture has outstretched arms.

An oven is a container that is made very hot by fire or some other heat source. More modern ovens have a door that closes tight and a very evenly regulated temperature. Ovens are used to cook food, most commonly baked goods like bread and pies and to roast meat or vegetables.

Overalls are a garment that you wear over the top of other clothes. It is like a pair of jeans or trousers, but instead of only being below the waist it comes up a lot higher and has a front panel that covers your chest and straps over your shoulders.

Something overflows if you keep putting things inside it, and those things fall out because there is no more room for them inside. The glass of water in the picture has been filled and is now overflowing.