Thesaurus
A really fast thesaurus... with lots of synonyms.
mainspring (26 synonym found)
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Definition of mainspring:
(n) :
the principal spring of a clockwork mechanism, that drives it by uncoiling; the most important reason for something
"editing Wiktionary is the mainspring of my life."
Definition of mainspring:
(n) :
the principal spring of a clockwork mechanism, that drives it by uncoiling; the most important reason for something
"editing Wiktionary is the mainspring of my life."