| A | B |
| amphibian | an animal that lives on land and water |
| ambidextrous | able to use both hands |
| ambition | to go around and work hard |
| ambivalent | to feel strongly about both sides of an issue |
| amphitheater | to be able to watch a performance from all sides |
| ambiguous | to "drive" or move around and not get to the point |
| amphibious | relating to or adapted for both land and water |
| ambidexterity | the quality of being able to use both hands |
| ambience | the feeling of what is going on around you |
| ambiguity | the act of not getting to the point |
| ambi-, amphi- | around, on both sides |
| contra-, contro-, counter- | against, opposite |
| anti-, ant- | against opposite |
| contradict | to speak against a point |
| antipathy | to feel against something or someone |
| counteract | to act against something or someone |
| controversy | the act of turning against an idea |
| antibiotic | medicine that helps control live viruses |
| counterfeit | to make fake money or items |
| contraband | items or money that are prohibited |
| (to) counter | to act in opposition to; to speak against |
| antonym | a word that means the opposite |
| antiseptic | something that works against infection to cure it |