Not if (6)
I believe the answer is:
unless
(Other definitions for unless that I've seen before include "Otherwise than if" , "Except, save" , "Except on the condition that" , "Conjunction meaning except when" , "bar" .)
I believe the answer is:
unless
(Other definitions for unless that I've seen before include "Otherwise than if" , "Except, save" , "Except on the condition that" , "Conjunction meaning except when" , "bar" .)