Sniff Out is a phrase that means to DETECT, LOCATE, and ROOT out something. It is often used in the context of finding something hidden or difficult to find. The term is derived from the action of sniffing out something, as a dog would do when searching for a scent. The crossword solutions for Sniff Out are DETECT (6 letters), LOCATE (6 letters), and ROOT (4 letters). Together, these words form the phrase Sniff Out, which can be used to describe the act of searching for something hidden or difficult to find.