| arbitrary |
resulting from personal opinions, wishes, or feelings instead of from a rule or reason. |
| arbitrate |
to make a decision about or settle. [2 definitions] |
| arbor1 |
a shady area made by arranging trees and bushes or by growing vines on a frame. |
| arbour |
a spelling of "arbor" used in Canada and Britain. See "arbor" for more information. |
| arc |
any curved line; anything shaped like a bow or curve. |
| arcade |
a row of arches connected to form a passageway. [2 definitions] |
| arch1 |
a curved structure made out of stone or brick and used to span an open space such as a door. [4 definitions] |
| arch- |
a prefix that means "main" or "most important." |
| archaeological |
of or relating to archaeology. Archaeology is the study of human life as it existed a very long time ago. |
| archaeologist |
a scientist who works in the field of archaeology, the study of past human life and culture. |
| archaeology |
the study of past human life. An archaeologist digs up and then studies objects such as pottery, tools, and buildings. |
| archaic |
of or pertaining to ancient times. [3 definitions] |
| archbishop |
a bishop of the highest rank. |
| archeology |
another spelling for archaeology. |
| archer |
a person who uses a bow and arrow. |
| archery |
the sport or practice of shooting with a bow and arrow. |
| archipelago |
a group of islands. |
| architect |
a person who designs buildings and directs their construction. |
| architecture |
the act or process of designing buildings, or the profession of an architect. [2 definitions] |
| archive |
a collection of records or information that is stored somewhere. An archive often stores things that go back a long time. |
| arctic |
(often capitalized) of or having to do with the region around the North Pole. [3 definitions] |