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tool subject

American  

noun

Education.

  1. a subject that, when mastered, equips students with a skill useful in studying other subjects.

    Grammar is a tool subject for English composition.

Etymology

Origin of tool subject

First recorded in 1920–25

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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