| a1 |
the first letter of the English alphabet. [6 definitions] |
| a2 |
any one of a group or kind. [3 definitions] |
| a3 |
in every or in each; for every or for each. |
| a.1 |
abbreviation of "acre" or "acres," a unit of area equal to 43,560 square feet or 4,047 square meters, used in measuring land. |
| a.2 |
abbreviation of "acceleration." |
| a-1 |
on; at; into; to. |
| a-2 |
used as an intensifier. [3 definitions] |
| AA |
abbreviation of "Alcoholics Anonymous," a world-wide recovery program for alcoholics, administered through chapters. |
| A.A. |
abbreviation of "Associate in Arts," an undergraduate degree conferred on a person who has completed a curriculum in the liberal arts. |
| AAA |
abbreviation of "American Automobile Association," an association that provides travel-related discounts and services to its members. |
| A and M |
abbreviation of "Agricultural and Mechanical." |
| aardvark |
a nocturnal mammal of southern Africa that has a long snout, long ears, and powerful claws for digging, and that feeds on ants using its extensile tongue. |
| aardwolf |
a striped, nocturnal African mammal of the hyena family that feeds primarily on insects. |
| Aaron |
according to the Old Testament, the older brother of Moses and the first high priest of the Hebrew nation. |
| AB1 |
one of the four human blood groups. (See ABO system.) |
| AB2 |
abbreviation of "Assembly Bill," in the U.S., a proposed law in consideration by a state assembly. |
| A.B. |
abbreviation of "artium baccalaureus" (Latin); Bachelor of Arts. |
| ab- |
from; away; off. |
| ABA |
abbreviation of "American Bar Association." |
| aba |
a coarse felted fabric of goat or camel hair. [2 definitions] |
| abaca |
a Philippine plant of the banana family that yields a fiber used in making rope. |