noun, verb, -cid⋅ed, -cid⋅ing.| 1. | the intentional taking of one's own life. |
| 2. | destruction of one's own interests or prospects: Buying that house was financial suicide. |
| 3. | a person who intentionally takes his or her own life. |
| 4. | to commit suicide. |
| 5. | to kill (oneself). |

suicide su·i·cide (s&oomacr;'ĭ-sīd')
n.
The act or an instance of intentionally killing oneself.
One who commits suicide.