| EF | a notable achievement |
|---|---|
| EF | use of physical or mental energy |
| EF | earnest and conscientious activity intended to do or accomplish something |
| EF | a series of actions advancing a principle or tending toward a particular end |
| EF | requiring great physical effort |
| EF | the quality of requiring deliberate effort |
| EF | not showing effort or strain |
| EF | requiring or apparently requiring no effort |
| EF | without effort or apparent effort |
| EF | the quality of requiring little effort |
| EF | audacious (even arrogant) behavior that you have no right to |
| EF | the quality of being bright and sending out rays of light |