A person who experiences something together with another person; one who shares an experience.
From 'co-' (together) plus 'experiencer,' which comes from 'experience' and the agent suffix '-er.' This relatively modern word describes someone who participates in a shared experience.
Your coexperiencers at a concert are as important to the memory as the music itself—neuroscience shows that shared experiences actually bond people's brains in measurable ways, which is why concerts feel different than listening alone.
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