| 銳氣 | ruì qì | acute spirit; dash; drive | |
| 銳利 | ruì lì | sharp; keen; acute; incisive; penetrating; perceptive | |
| 銳意 | ruì yì | acute determination; dauntless |
| 1 | This issue is very sharp. | |
| 2 | Diligent learners often have keen powers of observation. | |
| 3 | The west is suffering from severe drought, leading to sharp decreases in crop yields. | |
| 4 | His eyes are very sharp and can see far away things clearly. | |
| 5 | The success of this film lies in the producer's keen market sense. |