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Related to set on: smart set
set (someone or an animal) on (someone or an animal)
to command someone or an animal to attack someone or an animal. The gang leader set his thugs on the unwary tourists. Scott set his hounds on the raccoon.
set something (up)on something
to place something on the surface of something. Mrs. Franklin set a bowl of fruit upon the table. I set my empty glass on the counter.
Also, set upon.
1. Attack; see set at.
2. Instigate, urge one to engage in action, as in The older boys set on the young ones to get in trouble. [Early 1500s]
3. be set on or upon . Be determined to, as in He's set on studying law.
1. To attack someone or something: The lions set on the gazelles.
2. To urge or incite someone or something to attack someone or something: The guards set attack dogs on the intruder.
Resolved to do something or strongly wishing for something: She is set on getting a role in the play.