One who, or that which, troubles; a disturber.(noun)
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Use "troubler" in a sentence
"The scene of the death of the "troubler" Achan, with whom its name is associated (Jos., vii, 26)."
"When Ahab saw Elijah, he called out, “Is it you, you troubler of Israel?”"
"At any rate, when Sicinius, who was the greatest troubler of the magistrates and ministers of his time, was asked how it was he let Crassus alone, “Oh,” said he,"