verbless common
to surprise someone so much that they do not know what to say or think
The news dumbfounded everyone in the room.
Common phrases & grammar
dumbfound everyone · be dumbfounded by something
American English
How to pronounce dumbfound
verbB2
DUHMfownd
/ˈdəm.faʊnd̚/
2 syllables · Stress the first syllable.
to surprise someone so much that they do not know what to say or think
Practice out loud