to confuse, bewilder, or perplex

He was baffled by the technical language of the instructions.

to frustrate or confound; thwart by creating confusion or bewilderment.

to check or deflect the movement of (sound, light, fluids, etc.).

to equip with a baffle or baffles.

Obsolete . to cheat; trick.

to struggle ineffectually, as a ship in a gale.

something that balks, checks, or deflects.

an artificial obstruction for checking or deflecting the flow of gases (as in a boiler), sounds (as in the loudspeaker system of a radio or hi-fi set), light (as in a darkroom), etc.

any boxlike enclosure or flat panel for mounting a loudspeaker.

verb

clear up , enlighten , explain , abet , aid , assist , encourage , help , relieve , support

verb

addle , amaze , astound , befuddle , bewilder , buffalo , confound , confuse , daze , disconcert , dumbfound , elude , embarrass , faze , floor * , get , mix up , muddle , mystify , nonplus , puzzle , rattle , stick * , stump * , stun , throw , beat , block , check , circumvent , dash , defeat , disappoint , foil , frustrate , impede , obstruct , prevent , ruin , thwart , upset , balk , checkmate , stymie , astonish , confusion , counteract , deceive , discomfit , dumfound , euchre , evade , neutralize , obfuscate , obscure , outfox , outwit , perplex , stultify , stump , unsettle