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gumshoe

American  
[guhm-shoo] / ˈgʌmˌʃu /

noun

  1. Slang. a detective.

  2. a shoe made of gum elastic or India rubber; rubber overshoe.

  3. sneaker.


verb (used without object)

gumshoed, gumshoeing
  1. Slang.

    1. to work as a detective.

    2. to go softly, as if wearing rubber shoes; move or act snoopily or stealthily.

gumshoe British  
/ ˈɡʌmˌʃuː /

noun

  1. a waterproof overshoe

  2. a rubber-soled shoe

  3. slang a detective or one who moves about stealthily

  4. slang a stealthy action or movement

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. slang (intr) to act stealthily

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gumshoe

An Americanism dating back to 1860–65; gum 1 + shoe


Explanation

When you wear gumshoes, you're pulling on waterproof galoshes over your regular footwear. If you are a gumshoe, on the other hand, you're a private detective, investigating a case. The "detective" meaning of this word comes from the "galoshes" definition. In fact, during the late 19th century, gumshoes or gums were any type of rubber-soled shoes. Around the turn of the 20th century, to gumshoe meant "to sneak around," and by 1906, gumshoe became a common nickname for plainclothes detectives (or "private eyes"), famous for moving stealthily in their quiet rubber-soled shoes.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Farrell is terrific, as always, as an empathetic gumshoe investigating a trail of crime and corruption that rings true to devotees of L.A. noir, from Raymond Chandler to “Chinatown” to Jordan Harper.

From MarketWatch ● Jul. 31, 2026

Kilpatrick isn’t entirely fresh to the gumshoe storytelling business, having appeared in HBO’s “Perry Mason.”

From Salon ● Apr. 2, 2024

But if the musical ever gets a rewrite, I’d suggest bringing the gumshoe on as soon as possible.

From Los Angeles Times ● Feb. 15, 2023

Melling’s scenery-chewing portrayal of the budding writer — and, here, amateur gumshoe — is one of the film’s chief delights.

From Washington Post ● Jan. 3, 2023

In literature and in the popular imagination, the all-seeing private eye—the gumshoe, the cinder dick, the sleuthhound, the shadow—displaced the crusading sheriff as the archetype of rough justice.

From "Killers of the Flower Moon" by David Grann

Then he gumshoed around the neighborhood and found that Ohman, though uneducated in a formal sense, was a smart man who often expressed an urge to fool the scholars.

From Time Magazine Archive

Today there are spooky gumshoed armies of "security consultants," "rent-a-cops," "private eyes," "outside experts"—every manner of shady operator who retails in "results" and discretion.

From The Hacker Crackdown, law and disorder on the electronic frontier by Bruce Sterling

"Has that grasping old monopolist gumshoed into town again?" inquired Washburn, and promptly ordered his secretary to get Boise on the telephone.

From Five Thousand an Hour : how Johnny Gamble won the heiress by George Randolph Chester

When your trades are newspapering and gumshoeing, you tend to meet interesting people from all walks of life.

From Washington Post ● Mar. 22, 2022

It could have used one before Pearl Harbor, when global gumshoeing was a fine art among other powers.

From Time Magazine Archive

Before the Gibraltar meeting, Murphy had been gumshoeing through North Africa.

From Time Magazine Archive

Army's most publicized G.I. after his amateur gumshoeing for the late Joe McCarthy, could well beam.

From Time Magazine Archive

We drove for about an hour, the horse gumshoeing his way through the dark until we came to the hotel.

From The Sorrows of a Show Girl by Kenneth McGaffey

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