| orbit |
the curved path in which a planet, satellite, or spacecraft revolves about another body. [7 definitions] |
| orchard |
an area of land planted with fruit or nut trees. [2 definitions] |
| orchestra |
a group of musicians who play various instruments and perform together. [3 definitions] |
| orchid |
any of numerous mostly tropical plants that bear blossoms of various and exotic colors and shapes. [3 definitions] |
| ordain |
to proclaim or authorize (a person) to be a Christian priest or minister, or a rabbi, esp. by a formal ceremony. [4 definitions] |
| ordeal |
a painful, exhausting, or emotionally trying experience, esp. when regarded as a test of a person's endurance or character. [2 definitions] |
| order |
a direction or command. [17 definitions] |
| orderly |
characterized by a neat and methodical arrangement. [5 definitions] |
| ordinal number |
any number that is used to express order in a series, such as first, second, or tenth. (Cf. cardinal number.) |
| ordinarily |
as a rule; usually. [2 definitions] |
| ordinary |
usual or normal. [5 definitions] |
| Ore. |
abbreviation of "Oregon." |
| ore |
a mineral or rock substance from which a metal or other useful element or compound can be extracted. |
| Oregon |
a northwestern U.S. state on the Pacific coast between Washington and California. (abbr.: OR) |
| or else |
or you will be sorry. |
| organ |
a musical instrument consisting of a keyboard attached to a device that forces air through a number of pipes to produce a wide range of sounds; pipe organ. [4 definitions] |
| organic |
of or pertaining to compounds that contain carbon. (Cf. inorganic.) [6 definitions] |
| organism |
any single living being, such as an animal, plant, fungus, or bacterium. [2 definitions] |
| organization |
the act or process of organizing. [3 definitions] |
| organize |
to set in order; arrange in a systematic pattern. [6 definitions] |
| organized |
set in order; arranged in a systematic pattern. [3 definitions] |