Crossword Genius

Fundamental principle (5)

Ross

I believe the answer is:

basis

'fundamental principle' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for basis that I've seen before include "First principle" , "grounds" , "Ground, foundation" , "Reason" , "Underlying support (for an idea)" .)

I've seen this clue in The Guardian, The Washington Post Sunday, the Family Time, the USA Today, The Independent, The Sun, the Universal, the Wall Street Journal and the Jonesin'.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.