| augment | To make something greater by adding to it; increase | |
| audacious | Showing a willingness to take surprisingly bold risks | |
| astute | Having or showing an ability to accurately assess situations or people and turn this to one's advantage | |
| astray | away from the correct path or direction | |
| aspiration | A strong desire, longing, or ambition to achieve something, often involving personal growth or success | |
| aspersion | An attack on the reputation or integrity of someone or something | |
| askew | Not in a straight or level position; awry | |
| ashen | resembling ashes; pale, typically because of fear, shock, or illness | |
| ascetic | A person who practices severe self-discipline and abstention. | |
| ascendancy | Occupying a position of dominant power or influence | |