x and y, on a graph (4)

I believe the answer is:
axes
'x and y on a graph' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for axes that I've seen before include "lines in graph at right angles" , "Drastically cuts" , "guitars" , "alliances" , "lines at fourteen's [RIGHT ANGLES]" .)