| orbit |
the curved path in which a planet, satellite, or spacecraft moves in a circle around another body. [3 definitions] |
| orchard |
a piece of land planted with fruit or nut trees. |
| orchestra |
a group of musicians who play different kinds of instruments and perform together. [3 definitions] |
| orchid |
a plant that bears showy flowers. Most orchids are found in the tropics. [3 definitions] |
| ordain |
to admit to the clergy as a priest, minister, or rabbi in a formal ceremony. [2 definitions] |
| ordeal |
a painful, difficult experience, or test of one's character. |
| order |
a direction or command. [10 definitions] |
| orderly |
arranged in a neat way; in order. [4 definitions] |
| ordinal number |
any number that indicates a position in a numbered order. "First," "third," "fifteenth," and "thousandth" are ordinal numbers. |
| ordinarily |
as a rule; usually. |
| ordinary |
usual or normal. [3 definitions] |
| Ore. |
abbreviation of "Oregon." |
| ore |
a rock or mineral from which a metal or other useful substance can be removed. |
| Oregon |
a state in the northwestern United States on the Pacific Coast. Its capital is Salem. (abbreviated: OR) |
| or else |
or you will be sorry. |
| organ |
a musical instrument with a keyboard. It is played by pressing keys attached to a device that forces air through pipes. [3 definitions] |
| organic |
having to do with or coming from living things. [2 definitions] |
| organism |
an individual living thing, such as a plant, an animal, or a germ. |
| organization |
the act or process of organizing. [3 definitions] |
| organize |
to set in order; arrange in an orderly way. [3 definitions] |
| organized |
tending to organize one's tasks, surroundings, and the like. |