Nine to five, for example
(Other definitions for odds that I've seen before include "The chances of something happening" , "inequality" , "Chances of occurrence" , "Betting ratio" , "Take chances" .)
(Other definitions for ratio that I've seen before include "Comparative figure" , "Relative magnitudes of two quantities" , "Comparative size" , "A trio (anag)" , "Proportional relation between two numbers" .)