stun-v; 2 Senses

Sense Number 1: make senseless or dizzy by a blow or as if by a blow

The police stunned him with a Taser.
This blow stunned the fish, and it was possible to extract the eggs without struggling.

VerbNet: NM
FrameNet: NM
PropBank: NM
WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: overcome with astonishment or disbelief

Her elopement stunned her family and friends.
I was stunned by my sudden promotion.
They will stun you with their innovation.

VerbNet: amuse-31.1
FrameNet: Experiencer_obj
PropBank: stun.01
WordNet 3.0 Sense Numbers: 3