| A | B |
| Abnormal | Not normal |
| Abrupt | Quick/sudden/happen by surprise |
| Abundance | Plenty/ a lot of something |
| Accomplish | To finish |
| Acquire | To get/ obtain something |
| Adjustment | A change/ adaptation/ modification |
| Administer | To give; to manage |
| Advantage | A benefit; having a greater ability or strength than someone else |
| Alter | To change |
| Alteration | A small change |
| Application | To use in something; The act of putting something on |
| Apply | To put on or upon; To be suitable, relate to something |
| Appropriate | Right, proper |
| Arrangement | Something made by putting things together; to schedule or prepare |
| Assemble | To put together, make; to get together |
| Associated | To be together/ related |
| Benefit | Gain, positive result |
| Boundary | The limit of something; level capacity |
| Camouflage | To conceal; A way of hiding by blending in with one's surroundings |
| Capable | Having the ability to do something |