| around the clock |
through all twenty-four hours; without stopping. |
| arouse |
to awaken (someone) from sleep. [2 definitions] |
| arrange |
to put in some kind of order, pattern, or design. [3 definitions] |
| arrangement |
the act of putting things in order or in some particular way that is desired. [5 definitions] |
| array |
to put in order or position; organize or arrange. [5 definitions] |
| arrest |
to slow down; block; stop. [4 definitions] |
| arrival |
the act of reaching a certain place or goal. [2 definitions] |
| arrive |
to reach a certain place or goal. |
| arrogance |
the condition or quality of being arrogant; having too much pride or belief in one's superiority. [2 definitions] |
| arrogant |
having or showing too much pride; behaving as though one is more important than others. |
| arrow |
a thin pointed rod that is shot from a bow. [2 definitions] |
| arrowhead |
the sharp, pointed part on the end of an arrow. |
| arroyo |
a steep ditch carved in a plain or desert by the force of running water. Arroyos are usually dry except after a heavy rainfall. |
| arsenal |
a building used for storing weapons and ammunition. |
| arsenic |
a poisonous substance that is one of the chemical elements. It can be either grayish white, yellow, or black. (symbol: As) |
| arson |
the crime of burning buildings on purpose. |
| art |
the creation of things whose purpose is to be beautiful or full of meaning. [4 definitions] |
| artefact |
another spelling of artifact. |
| artery |
a blood vessel that carries blood away from the heart. [2 definitions] |
| arthritis |
a disease of the joints in which they swell and become painful. |
| arthropod |
a large group of animals with hard shells on the outsides of their bodies, legs with joints, and no bones inside their bodies. Insects, spiders, centipedes, and crabs are arthropods. |