| A | B |
| aborigine | (n) An original inhabitant |
| altercation | (n) A noisy dispute |
| amalgam | (n) A mixture of different elements |
| ambrosial | (adj) delicious, fragrant, divine |
| ambulatory | (adj) walking or moving; alterable |
| amphibious | (adj) able to function both on land and water |
| androgynous | (adj) having both make and female characteristics, unisex |
| aperture | (n) an opening; a hole |
| apex | (n) highest point, summit |
| apparition | (n) an unusual or unexpected sight |