| alternative |
one of two or more choices. [3 definitions] |
| although |
in spite of the fact that; even though; though. |
| altimeter |
a device that measures distance above the Earth's surface. |
| altitude |
the height of a thing above earth or above sea level. |
| alto |
the vocal range between tenor and soprano. Alto is the lowest range for the female voice and highest for the male. [4 definitions] |
| altogether |
completely; entirely. [3 definitions] |
| aluminium |
the British word for "aluminum," a strong, light, silver metal that does not easily rust. |
| aluminum |
a strong, light, silver metal that does not easily rust. Aluminum is a chemical element. (symbol: Al) |
| always |
at all times; without stopping; forever. [3 definitions] |
| am |
a form of the verb "be" that is present tense and used with the pronoun "I." |
| a.m. |
abbreviation of "ante meridiem," which means "before noon" in Latin; the time between midnight and noon. |
| amateur |
one who does something only for enjoyment rather than for money. [3 definitions] |
| amaze |
to surprise greatly or fill with wonder; astonish. |
| amazement |
wonder; great surprise. |
| amazing |
causing great surprise or wonder. |
| Amazon |
the longest river in South America. It flows from the Andes mountains in Peru across northern Brazil to the Atlantic Ocean. [2 definitions] |
| Amazon River |
a major river of South America that flows from the Andes Mountains in Peru across northern Brazil to the Atlantic Ocean. |
| ambassador |
a person who is sent by the government of one country to be its official representative in another country. [3 definitions] |
| amber |
a hard, yellow or brown material that is used to make jewelry. It is a fossil that comes from the resin of pine trees. [2 definitions] |
| ambidextrous |
able to use both the left and right hands with equal skill. |
| ambiguous |
having more than one possible meaning. |