| A | B |
|---|
| aqua or aque | root meaning "water" |
| antiaircraft | designed for defense against air attack |
| antibiotic | a substance that kills germs |
| antidote | a substance that counteracts poison |
| antifreeze | a substance that prevents liquid from freezing |
| anti- | prefix meaning "against" |
| aqueduct | a channel that carries large amounts of water |
| antisocial | withdrawn from other people or social situations |
| aqualung | breathing equipment for underwater swimming or diving |
| aquamarine | a bluish sea-green color |
| aquarium | an artificial pond or tank of water where live water animals and water plants are kept |
| aquaplane | a wide board that is towed by a motorboat, like a single water ski |
| aquatic | growing or living in water |
| antiseptic | a substance used to prevent bacteria or germs that cause decay |
