know–why

noun

Definition of know–why

plural

know–whys

  1. :  understanding of the reasons underlying something (as a course of action) our frontier past and our industrialized present both incline us toward a preoccupation with technique, with know-how rather than know-why — Dwight Macdonald

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Origin and Etymology of know–why

from the phrase know why


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a trip made at another's expense

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