| April |
the fourth month of the Gregorian calendar year, having thirty days. |
| April Fools' Day |
the first day of April, when tricks and practical jokes are customarily played on unsuspecting people. |
| apron |
a garment covering all or part of the front of the body, usu. worn to protect the wearer's clothing. [3 definitions] |
| apt |
appropriate; suitable. [4 definitions] |
| apt. |
abbreviation of "apartment," a room or set of rooms used as living space by a single household and usu. located in a building containing a number of such rooms or sets of rooms. |
| aptitude |
ability to learn quickly. [2 definitions] |
| aqua |
a light greenish blue or blue-green color. [2 definitions] |
| aquaculture |
the cultivation of water plants, fish, shellfish, and other aquatic animals in controlled freshwater or saltwater environments. |
| Aqua-Lung |
trademark for an underwater breathing device similar to a scuba. |
| aquarium |
an artificial pond or container filled with water in which aquatic forms of life are kept. [2 definitions] |
| Aquarius |
an autumn zodiacal constellation located between Capricornus and Pisces; Water Bearer. [3 definitions] |
| aquatic |
of, in, or taking place on the water. [4 definitions] |
| aqueduct |
a channel built to convey water from a long distance. [2 definitions] |
| aquifer |
a bed of rock, sand, or gravel that can hold great quantities of water and supplies it to wells and springs. |
| -ar1 |
of or pertaining to. [2 definitions] |
| AR |
abbreviation of "Arkansas," a south central U.S. state between Mississippi and Oklahoma. |
| Arab |
a member of the Semitic people that originated in Arabia and now forms the dominant population in that and other Middle Eastern countries. [4 definitions] |
| Arabia |
a Southwest Asian peninsula between the Red Sea and the Persian Gulf. |
| Arabian |
of, pertaining to, originating in, or characteristic of Arabia or its desert climate. [4 definitions] |
| Arabian Desert |
a very arid region occupying a large portion of the Arabian Peninsula and stretching into Jordan and Iraq. |
| Arabian Peninsula |
a peninsula in western Asia that lies between the Red Sea to the west and the Persian Gulf to the northeast. The Indian Ocean borders the Arabian Peninsula on the southeast. Countries located on the peninsula include Saudi Arabia, Yemen, Oman, United Arab Emirates, Qatar, Bahrain, and Kuwait. |