| Name | Meaning | Gender | Origin |
|---|
| Aries | Battle strife | Unisex | Greek |
| Badger | Burrowing mammal with white stripe on forehead. Also verb to pester or harass. | Unisex | English |
| Bandit | An outlaw or robber | Unisex | English |
| Blue | Blue | Unisex | English |
| Bruiser | A large heavyset man | Unisex | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Chewy | Needing chewing. | Unisex | English |
| Chief | One in highest rank or authority. | Unisex | English |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Unisex | English |
| Danger | | Unisex | Hebrew |
| Demon | Demon | Unisex | Greek |
| Diablo | The Devil | Unisex | English |
| Diesel | | Unisex | Hebrew |
| Evil | | Unisex | Hebrew |
| Fang | Fragrant | Unisex | Chinese |
| Fury | | Unisex | Hebrew |
| Hades | World of the dead or hell. | Unisex | Greek |
| Harrington | Surname. | Unisex | English |
| Killer | | Unisex | Hebrew |
| Kojak | | Unisex | Hebrew |
| Kujo | | Unisex | Hebrew |
| Magnum | A large type of wine bottle. | Unisex | English |
| Oj | Short for orange juice. | Unisex | English |
| Rookie | | Unisex | Hebrew |
| Sabre | | Unisex | Hebrew |
| Sarge | Noncommissioned Army or Air Force rank | Unisex | English |
| Scout | Observer | Unisex | American English |
| Trigger | | Unisex | Hebrew |
| Whisper | | Unisex | Hebrew |