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astronomical having to do with astronomy. [2 definitions]
astronomy the branch of science that studies the universe beyond the earth.
as well besides; also; too.
as well as and also.
as yet up until now.
asylum a place that offers safety. [3 definitions]
at1 on or in the location of. [5 definitions]
Atacama Desert an extremely dry region of northern Chile that lies between the Pacific Ocean and the Andes mountains.
at all in the smallest amount; in any way.
at all costs without considering the amount of work or effort needed.
-ate1 a suffix that means to become or cause to become or have. [3 definitions]
ate past tense of eat.
at ease a standing position in the military. When at ease, soldiers may relax but must stay in place and cannot talk.
at fault responsible for mistakes or errors.
at full blast (informal) at maximum speed, volume, or power.
at full tilt at maximum speed.
atheist a person who believes that there is no god or gods.
Athena the goddess of wisdom, the arts, and warfare, in Greek mythology. Athena was born out of the head of Zeus, ruler of the gods. In Roman mythology, Athena is called Minerva.
Athens the capital city of Greece, in modern and ancient times.
athlete a person who participates in sports or other physical activities.
athlete's foot a common foot infection caused by fungi. Athlete's foot makes the skin itch and look scaly.