Definition

The main source of motivation or energy behind something, often used to describe the driving force in a movement or mechanism.

Example

The mainspring of the project was the desire to improve community health.

Conversation

Have you ever thought about what the mainspring of your life is?

I guess it's my passion for art that keeps me going.

That's a great way to view it; my mainspring would probably be my family.

Family really does drive us to be better, doesn't it?

Synonyms & Antonyms

Root Explanation

Mainspring → It is formed from "main" (from Old French *main*, meaning principal or chief) and "spring" (from Old English *springan*, meaning to leap or burst forth). The word "mainspring" refers to the principal spring in a mechanism that provides the main source of power or energy.

Memory Tip

Think of the 'main' part being the 'chief' source of energy that 'springs' forth to power a mechanism.

Visually Confused Words