Sniffer

/ˈsnɪfər/

Meaning & Definition

noun

A device or program that detects and analyzes data packets traveling over a network.

The IT department installed a sniffer to monitor the network for unauthorized activity.

A person or animal that uses their sense of smell to detect or investigate something.

The sniffer dog was trained to find hidden drugs at the airport.

Derived from the verb 'sniff', meaning to inhale through the nose to detect smells.

sniffer dog

A dog trained to use its sense of smell to detect substances, often used in law enforcement.

packet sniffer

A tool that intercepts and logs traffic that passes over a digital network.

sniff out

To discover or detect something by using one's sense of smell or intuition.

sniff

To inhale through the nose to detect smells.

snout

The projecting snout of an animal used for smelling.

scent

A distinctive smell, especially one that is pleasant.

A person who is overly nosy or intrusive.

Don't be such a sniffer, mind your own business!

A person who searches for information or secrets, often in a sneaky way.

He's a real sniffer, always digging for dirt on people.