| orient |
(capitalized) the countries east and southeast of Europe; Asia; the Far East. [2 definitions] |
| oriental |
(often capitalized) of or having to do with the countries east and southeast of Europe. [2 definitions] |
| orientation |
the act or process of preparing oneself or others for a new situation. |
| origami |
the Japanese art or technique of folding paper into pleasing figures. |
| origin |
the point or place from which something comes; source. [2 definitions] |
| original |
first; earliest. [6 definitions] |
| originality |
the ability to think or act in a new way or as an individual. [2 definitions] |
| originally |
at first. |
| originate |
to start or come into being. [2 definitions] |
| Orinoco River |
a major river of South America that starts near the Venezuelan border with Brazil, flows across Venezuela, then along the border with Colombia, and finally empties into the Atlantic Ocean. |
| oriole |
a songbird that can be found in many parts of the world. Males have black and bright yellow or orange feathers. There are two main groups of birds that are considered orioles. There are several different kinds of orioles in each group. |
| Orion |
a hunter and giant in Greek myth. [2 definitions] |
| ornament |
something that is added to make something more beautiful to look at; decoration. [2 definitions] |
| ornate |
having a lot of decoration; fancy. |
| ornery |
mean; stubborn. |
| ornithology |
the study of birds. |
| orphan |
a child whose parents have died. [2 definitions] |
| orphanage |
a place where orphans live and are cared for. |
| orthodontics |
(used with a singular verb) the branch of dental medicine that deals with the straightening of teeth. |
| orthodontist |
a dentist who works in the branch of dental medicine that deals with the straightening of teeth. |
| orthodox |
of, having to do with, or following what is believed or practiced by most other people. |