Vibrating in response to a sound or force, or figuratively, striking a deep emotional chord with someone.
From Latin 'resonare' (re- + sonare, to sound again); the term originally described acoustics but has been extended metaphorically since the 19th century.
Opera singers can shatter wine glasses by hitting the glass's resonant frequency—the note that makes it vibrate so intensely it cracks—and this same principle is why podcasts 'resonate' with listeners on an emotional frequency.
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