Common sense ( Informal ) (4)
(Other definitions for loaf that I've seen before include "Some bread; 10 (slang)" , "Bread - brain!" , "veg out" , "cottage?" , "Hang around for bread?" .)
(Other definitions for nous that I've seen before include "we found in Sorbonne, for example" , "Knowledge, experience" , "Gumption" , "Native wit" , "Common sense, rhymes with house" .)