I.
verb
ADVERB
▪ briefly , momentarily
PREPOSITION
▪ into
▪
The assault was so unexpected that he was briefly stunned into submission.
PHRASES
▪ ~ sb into silence
▪
The guests were stunned into silence.
Stun is used with these nouns as the object: ↑ observer , ↑ world
II.
adj.
Stun is used with these nouns: ↑ grenade , ↑ gun