C2 verb /ˈdʌmfaʊnd/
dumbfound
হতবাক করা
Meaning
to greatly astonish or shock someone so they are temporarily speechless
Example
The magician's trick dumbfounded the audience.
যাদুকরের কৌশল দর্শকদের হতবাক করে দিয়েছিল।