Something that vibrates powerfully with sound, or figuratively, something that connects deeply with people's feelings and emotions.
From Latin 'resonare,' meaning 'to sound again' or 'to resound,' from 're-' (again) and 'sonare' (to sound). The word evolved to describe both physical sound vibrations and emotionally stirring ideas or words.
A tuning fork resonates at exactly the same frequency as another tuning fork nearby—sound waves are basically one object convincing another to vibrate in sympathy, which is almost like musical telepathy.
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