totally bewilder or perplex

an unexplained occurrence that baffled everyone

restrain or regulate (a fluid, sound, etc.)

to baffle the noise further, I pad the gunwales

a device used to restrain the flow of a fluid, gas, etc. or to prevent the spreading of sound or light in a particular direction

you can cut out glare from a strip light by concealing it behind a baffle

a baffle plate