Associations to the word «Mainspring»

Wiktionary

MAINSPRING, noun. The principal spring of a clockwork mechanism, that drives it by uncoiling.
MAINSPRING, noun. (figuratively) The most important reason for something.

Dictionary definition

MAINSPRING, noun. The most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism.

Wise words

We should have a great fewer disputes in the world if words were taken for what they are, the signs of our ideas only, and not for things themselves.
John Locke