Synonyms of exterminator

1 Syllable
slayer
2 Syllables
soldier, butcher, cut-throat, destroyers, wreckers, hunter, destroyer, killer, killers
3 Syllables
assassin, gunperson
4 Syllables
demolisher, gunman/woman, hit-man/woman, demolishers
5 Syllables
annihilator, chemotherapy, eradicator, executioner, eradicators