Stab and Set upon

Stab verb - To penetrate or hold (something) with a pointed object.

Set upon and stab are semantically related In some cases you can use "Set upon" instead a verb "Stab".

Set upon verb - Assail or attack on all sides: "The zebra was beset by leopards".

Stab and set upon are semantically related in pounce topic. Sometimes you can use "Stab" instead a verb "Set upon", if it concerns topics such as assault physically.