| 4WD |
abbreviation of "four-wheel drive," a car that drives by means of all four wheels rather than the rear wheels only, or the drive system of such, in which both front and rear wheel axles are turned by the drive shaft. |
| acceptable |
reaching only a minimum level of adequacy; barely satisfactory; tolerable. [1/3 definitions] |
| ace |
a playing card that has only one mark. In card games, an ace has either the highest value of all the cards or the lowest. [1/5 definitions] |
| acellular |
composed of only one cell; unicellular (used esp. in reference to protozoans and ciliates). [1/2 definitions] |
| Achilles |
the hero of The Iliad, who is killed by an arrow in his heel, his only vulnerable spot. |
| acrogen |
a plant that produces no flower and grows only from the tip of the stem, such as a fern or moss. |
| ad hoc |
for this particular case, occasion, or purpose only; with respect only to this. [1/2 definitions] |
| adult |
suitable only for adults. [1/6 definitions] |
| aerobic |
occurring or living only in the presence of oxygen. [1/3 definitions] |
| affair |
something that concerns only one person or one particular group; a private matter. [1/3 definitions] |
| all-American |
made up only of Americans or of parts made in America. [1/2 definitions] |
| alley1 |
the space between the two outer sets of lines on each side of a tennis court, used only in doubles. [1/5 definitions] |
| all-natural |
containing only ingredients or materials that originate in nature and are not artificially created. |
| alone |
being the only one, distinct from all others. [1/5 definitions] |
| amateur |
one who does something only for enjoyment rather than for money. [1/3 definitions] |
| amoeba |
a tiny living thing made of only one cell. Amoebas move by changing their shape. They eat by wrapping their bodies around their food. Amoebas live in fresh and salt water, soil, and in animals. Most kinds of amoebas can only be seen through a microscope. |
| Anabaptist |
a member of any of several Protestant sects formed in the sixteenth century that baptized only adult believers, opposed military service, and advocated the separation of church and state. [1/2 definitions] |
| annual |
a plant that grows for only one year or one season. [1/3 definitions] |
| antelope |
an animal with horns, a long neck, long legs, and hooves. Antelopes are known for their fast running. Antelopes are mammals that eat plants and chew their cud. The smallest kind of antelope is only one foot tall; the largest antelope is six feet tall at the shoulder. Gazelles, gnus, and impalas are all antelopes. Most antelopes live in Africa; some also live in Asia. [1/2 definitions] |
| antler |
one of a pair of bony growths on the head of most kinds of deer. Male elk, moose, and white-tailed deer all grow antlers with branches or prongs. Deer grow new antlers every year. Caribou and reindeer are the only deer that have antlers on both the males and the females. |
| area rug |
a rug intended to cover only a specific section of a floor. |