Governor's override (4)

I believe the answer is:
veto
(Other definitions for veto that I've seen before include "Power to reject legislation" , "Right to prevent proposed action" , "Refuse to endorse" , "Reject - vote (anag)" , "black ball" .)
I believe the answer is:
veto
(Other definitions for veto that I've seen before include "Power to reject legislation" , "Right to prevent proposed action" , "Refuse to endorse" , "Reject - vote (anag)" , "black ball" .)