| Aramaic |
the Semitic language of ancient Syria, Palestine, and Southwest Asia. [3 definitions] |
| Arapaho |
a member of a North American Indian tribe that formerly lived in the western plains from Texas and New Mexico to Canada, and now lives in Oklahoma and Wyoming. [2 definitions] |
| arapaima |
a very large edible fish of the rivers of the Amazon region. |
| araroba |
a bitter yellow medicinal powder obtained from cavities in the trunk of a Brazilian tree; Goa powder. [2 definitions] |
| araucaria |
a cone-bearing evergreen native to the Southern Hemisphere and grown as an ornamental elsewhere. |
| Arawak |
a member of an Indian people once widespread throughout the West Indies, now living chiefly in northern South America. [2 definitions] |
| Arawakan |
a family of South American Indian languages that includes Arawak. |
| arbalest |
a medieval missile-launching weapon whose design is similar to that of a crossbow. |
| arbiter |
someone who has the authority to decide an issue or settle a dispute; arbitrator. |
| arbitrage |
the purchase of a security or commodity in one financial market and its immediate resale in a different market, used as a way to profit from the difference in market prices. [3 definitions] |
| arbitrager |
one that engages in arbitrage. |
| arbitrament |
the act of arbitrating. [2 definitions] |
| arbitrary |
resulting from whim or caprice instead of from a rule or reason. [3 definitions] |
| arbitrate |
to decide as an arbiter. [4 definitions] |
| arbitration |
the consideration and decision of an issue or dispute by an arbiter. [2 definitions] |
| arbitrator |
a person chosen to mediate and resolve disputes or controversies. [2 definitions] |
| arbor1 |
an arrangement of trees, vines, shrubs, or flowers, often supported by a lattice framework and forming a shady bower or shelter. |
| arbor2 |
the shaft or axis which turns or supports a rotating cutting tool such as a lathe. |
| arbor3 |
in botany, a tree. |
| Arbor Day |
in the United States, a spring day set aside for the planting of trees in the community. |
| arboreal |
of, like, formed by, or pertaining to trees. [2 definitions] |