Sniff round Definition 1 of 2Pro Tip 1/3Searching Behavior Used when someone is actively looking for something, often in a subtle or quiet way. She was sniffing round the room for her lost earring. Pro Tip 2/3Gathering Information Implies trying to discover information bit by bit, not always directly asking. The reporter was sniffing round the authorities to uncover the truth. Pro Tip 3/3Covert Exploration Suggests a stealthy or secretive approach to learning about something or somewhere. The detective started sniffing round the suspect's property.