Moderate as in keynote/keystone The main source or essential force that acts as a foundation or starting point, similar to a root. Clear All
5 Example Sentences Showcasing the Meaning of 'Mainspring'
Learning about the scientific method is the mainspring of any student's journey into the world of research and experimentation.
The protagonist's quest for justice served as the mainspring, propelling the gripping storyline of the detective novel.
In the novel, the protagonist's desire for justice served as the mainspring driving the plot forward.
The mainspring behind the environmental movement is the concern for the planet's well-being.
A strong sense of community can be the mainspring for positive social change within a neighborhood.
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