mainspring
🇺🇸
/ˈmeɪnsprɪŋ/
🇬🇧
/ˈmeɪnsprɪŋ/
noun
R
The key element or driving force behind something.
Her passion for helping others is the mainspring of her charitable work.
R
The central spring in a clock or watch that provides the power to keep it running.
The watchmaker carefully replaced the worn-out mainspring in the antique timepiece.
translation
The key element or driving force behind something.; The central spring in a clock or watch that provides the power to keep it running.
Word Forms
Plural
mainsprings