1
: one that sniffs: such as
a
: someone who sniffs a drug or other substance in order to become intoxicated
a cocaine/glue sniffer
b
or less commonly sniffer dog
: a dog that is trained to recognize and follow scents especially for the purpose of locating people or contraband (such as illicit drugs and explosives)
2
informal
: nose
Use your sniffer to detect unattractive or unhealthy odors.—
Susan DeBow
Susan DeBowExamples of sniffer in a Sentence
Sniffers were brought in to search bags at the airport.
Recent Examples on the Web
Interior Minister Alexander Dobrindt said searches were conducted with sniffer dogs and technological tools at the Oktoberfest site.
—CNN Money, 1 Oct. 2025
Mounted officers and sniffer dogs patrolled the streets near Windsor and Eton Central railway station, monitoring arrivals and maintaining security around the historic town.
—Amanda Castro
hannah Parry
shane Croucher
jack Royston, MSNBC Newsweek, 18 Sep. 2025
Security was reinforced on the streets of the capital with extra contingents of the military and judicial police, sniffer dogs, and intelligence officers.
—Adriana Carranca, Time, 12 Sep. 2025
Already guaranteed to have a heightened presence after Charlie Kirk's assassination, security was boosted throughout the ballpark with the Secret Service and sniffer dogs outside the gates.
—Ryan Morik, FOXNews.com, 11 Sep. 2025
See All Example Sentences for sniffer
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CNN Money, 1 Oct. 2025
Mounted officers and sniffer dogs patrolled the streets near Windsor and Eton Central railway station, monitoring arrivals and maintaining security around the historic town.
—Amanda Castro
hannah Parry
shane Croucher
jack Royston, MSNBC Newsweek, 18 Sep. 2025
Security was reinforced on the streets of the capital with extra contingents of the military and judicial police, sniffer dogs, and intelligence officers.
—Adriana Carranca, Time, 12 Sep. 2025
Already guaranteed to have a heightened presence after Charlie Kirk's assassination, security was boosted throughout the ballpark with the Secret Service and sniffer dogs outside the gates.
—Ryan Morik, FOXNews.com, 11 Sep. 2025
See All Example Sentences for sniffer
Cite this Entry
“Sniffer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sniffer. Accessed 31 Oct. 2025.
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