Both Uses

baffle
in
Nation, by Terry Pratchett
(Auto-generated)

It baffled her.†
Chpt 4.
The conversation that took place was baffling to Mau, because the man in the black clothes spoke in a whisper while His Excellency asked questions at the top of his voice, so that what he heard was a fast buzzing, punctuated with explosions, as in "Me?"†
Chpt 15. *

Definitions:

(1) (baffle as in: baffled her)
to perplex or confuse someone
(2) (baffle as in: acoustic baffle)
something constructed to control the flow of sound or fluid
(3) (meaning too rare to warrant focus)
Less commonly:
- baffle can refer to the hindering of efforts, plans, or desires.
- baffles can describe the area directly behind a moving vessel where water is disturbed
- baffle has other technical uses relating to medicine, heat transfer, and mechanics