Clive Anderson

You can be a famous poisoner or a successful poisoner, but not both, and the same seems to apply to Great Train Robbers.

English Entertainer

Using 'poisoner' implies illegal and harmful intentions, often associated with crime.

Often found in mystery or crime novels, where a 'poisoner' is a key suspect.

Historically, poisoners were infamous figures, sometimes associated with royal courts or politics.

This is a metaphorical use, comparing negativity to 'poison' that damages a workplace or group.

This definition doesn't imply a crime but suggests destructive behavior or influence.

Here, 'poisoner' references an abstract concept, like toxicity in relationships, not a literal substance.