| Term | Definition |
| bactericide | substance that kills bacteria |
| biocide | substance that destroys many different organisms |
| fraticide | act of killing (or killer of) one's brother |
| fungicide | substance that kills fungi or inhibits in their growth |
| genocide | deliberate extermination of a racial or cultural group |
| germicide | substance that kills germs |
| herbicide | substance that kills plants |
| homicide | killing of one human by another |
| infanticide | act of killing (or killer of) an infant |
| insecticide | substance that kills insects |
| matricide | act of killing (or killer of) one's mother |
| patricide | act of killing (or killer of ) one's father |
| pesticide | substance that kills rats, insects, bacteria, etc. |
| regicide | act of killing ( or killer of) a king |
| sororicide | act of killing (or killer of) one's sister |
| suicide | act of killing (or killer of) one's self |
| tyrannicide | act of killing (or killer of) a tyrant |