Synonyms of the word 
PERSECUTOR → OPPRESSOR - TORMENTER - TORMENTOR
persecutor
- n. A person or thing that persecutes or harasses.
oppressor
- n. Someone who oppresses another or others.
tormenter
- n. Alternative spelling of tormentor.
tormentor
- n. Someone who torments.
- n. An implement for reducing a stiff soil, resembling a harrow, but running upon wheels.
If you are interested in words, visit the following sites :
- wiktionary.org/persecutor For complete definition of a word
- 1word.ws/persecutor to play with words, suffixs, prefixs, etc.