Words that start with O

Orange orangutans avidly ogle an orchard of oleanders in Oregon.

Ois forOrbit

An orbit is the path that an object follows around another object, especially a planet or other celestial body. For example, Earth orbits the sun, and satellites orbit Earth.

Ois forOrca

Scientific name: Orcinus orca
The orca, or killer whale, is the largest member of the dolphin family. They are found in oceans all over the world. Orcas are hunters, and will eat fish, sharks, seals and even whales. They grow to around 6-8 metres long, and can live to be 80 years old, although most males only get to be 30 and females 50. A female orca will have one calf every 5 years.

Ois forOrchard

A group of fruit trees, usually planted in straight rows, is called an orchard.
An orchestra is a large group of people together, all playing musical instruments. There are a particular number of each kind of musical instrument in an orchestra. Orchestras can play beautiful music, and people often go out to a special place like a theatre just to listen to an orchestra play. A person who directs an orchestra is called a conductor.

Ois forOrchid

Scientific name: family: orchidaceae
Orchids are a very big plant family. There are more different kinds of orchid than there are different kinds of bird. Orchids are found everywhere except deserts and glaciers. Orchids are grown for their pretty flowers. You can tell an orchid mainly by one of its petals being somehow different to all the others.

Ois forOrder

An order is a command you give to someone else to tell them to do something.

Ois forOrdinary

Something is ordinary if there is nothing outstanding about it. Something is ordinary if you don't really notice it as you pass by.

Ois forOre

An ore is a kind of rock that can be processed to turn it into something valuable, like metal or an element like sulfur. Low grade ore doesn't contain much of what you want, whereas high grade ore contains a lot. Ore is usually dug up in large quantities in a mine.

Ois forOregano

Scientific name: origanum vulgare
Oragano is a herb often used in Greek, Spanish and Italian cooking. It comes from the Mediterranean region. Oregano is very commonly used on pizza.

Ois forOrganism

An organism is anything that is alive and able to grow and reproduce. The organism in the picture is a jellyfish.