Time or tone? (3)

I believe the answer is:
two
(Other definitions for two that I've seen before include "eg Twins" , "limited company?" , "Between one and three" , "2" , "prime -- that's not odd" .)
I believe the answer is:
two
(Other definitions for two that I've seen before include "eg Twins" , "limited company?" , "Between one and three" , "2" , "prime -- that's not odd" .)