| A | B |
|---|
| antecede | to go before in time, order, or place |
| antemeridian | A.M. (before the middle of the day) |
| aquarium | place of water plants and animals |
| aqualung | tank used by divers |
| aqueduct | man-made channel to "lead water" to another place |
| solarium | a room with lots of sunlight |
| terrarium | a place for land animals |
| contemporary | living at the same time |
| library | a place to keep books |
| bakery | a place to make pastry and bread |
| sanatorium | a place to provide care of invalids |
| lavatory | a washroom |
| asteroid | star-like (planetoids between Jupiter and Mars |
| astral | of or pertaining to stars |
| astrology | study of the "influence" of stars (signs of Zodiac) |
| astronaut | one who travels amongst the stars |
| astronomy | the scientific stuy of heavenly bodies |
| audible | capable of being heard |
| auditorium | a closed-in place where people gather to listen |
| audiometer | instrument measuring how well one hears |
