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crux

[kruhks] / krĘŚks /
NOUN
most important part
Synonyms
STRONGEST
bottom line core essence gist nub
STRONG
body heart kernel matter meat nitty-gritty pith purport substance thrust
WEAK
decisive point meat and potatoes
Antonyms
STRONGEST
exterior outside
STRONG
exteriority nothing nothingness
WEAK
trivia

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.