PHILOSOPHY: Words people should at least know and understand, even if they have no personal inclinations toward them: omphaloskepsis (spirituality), philology (linguistics), polyamory (biology). (...)

Please list three important words for the world today.

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Words people should at least know and understand, even if they have no personal inclinations toward them: omphaloskepsis (spirituality), philology (linguistics), polyamory (biology).