make sound, make noise, sound
响 centers on producing audible sound: making a noise, ringing out, or causing something to be heard.
响 combines 口 (mouth) with 向, which likely contributes the sound and the idea of direction or facing, suggesting sound directed outward from the mouth.
A mouth 口 facing 向 outward projects sound: 响 is making noise that travels.
For キョウ, imagine a loud sound echoing through Kyoto (キョウト): the first part of Kyoto cues キョウ, and the sound fills the city.