| asthma |
a chronic respiratory disorder characterized by labored breathing, wheezing, and a feeling of tightness in the chest, often caused by an allergy. |
| as though |
as if. |
| astir |
in action; moving. [2 definitions] |
| astonish |
to fill, suddenly, with great surprise or amazement. |
| astonishment |
great surprise or amazement. |
| astound |
to overcome with surprise, awe, or wonder; amaze. |
| astray |
off the right or known path or course. [2 definitions] |
| astride |
over or upon and with a leg on each side of; straddling. [4 definitions] |
| astrology |
the study of the positions of the heavenly bodies in relation to each other with the aim of predicting their influence on human affairs. |
| astronaut |
a person trained to participate in space flight. |
| astronomer |
a scientist who studies the universe beyond the earth. |
| astronomical |
of or pertaining to astronomy. [2 definitions] |
| astronomy |
the branch of science concerned with the physical universe beyond the atmosphere of the earth. |
| as well |
in addition; also; too. |
| as well as |
and also; and moreover. [2 definitions] |
| as yet |
up until now; up to this point. |
| asylum |
(old-fashioned) an institution for the care of those who are unable to maintain themselves, such as orphans or the severely mentally ill. [3 definitions] |
| at1 |
on or in the location of. [5 definitions] |
| Atacama Desert |
an extremely arid region of northern Chile that lies between the Pacific Ocean and the Andes mountains. |
| at all |
to even the slightest degree or extent; in the least (used in negative statements and questions only). |
| at all costs |
regardless of the effort or sacrifice necessary. |