Main Entry: ax·i·om

Pronunciation: \ˈak-sē-əm\

Function: noun

Etymology: Latin axioma, from Greek axiōma, literally, something worthy, from axioun to think worthy, from axios worth, worthy; akin to Greek agein to weigh, drive — more at agent

Date: 15th century

1 : a maxim widely accepted on its intrinsic merit
2 : a statement accepted as true as the basis for argument or inference : postulate 1
3 : an established rule or principle or a self-evident truth