Crossword Genius

Self-evident truth (5)

Ross

I believe the answer is:

axiom

'self-evident truth' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for axiom that I've seen before include "Universal principle" , "Fundamental proposition" , "Universally accepted proposition" , "It's taken for granted" , "Statement regarded as self-evidently true" .)

I've seen this clue in The Times, the Newsday, The Telegraph, the Sydney Morning Herald and The Wall Street Journal.
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