gumshoe

• POS: Noun, Verb (usu participle)
• HYPHEN: gum=shoe

CIDE DICTIONARY

gumshoe, n. 

•  A detective; a private eye.  [PJC]
•  A shoe made of rubber, as a rubber overshoe.  [PJC]
•  A sneaker{3}.  [PJC]

OXFORD DICTIONARY

gumshoe, n. US 1 a galosh. 2 sl. a detective.

THESAURUS

gumshoe

Dogberry, John Law, Sherlock, Sherlock Holmes, beagle, bluecoat, bobby, bull, cop, copper, couch, crawl, creep, dick, eye, flatfoot, flattie, fuzz, gendarme, go on tiptoe, grovel, gumshoe man, hawkshaw, heat, inch, inch along, investigator, lay wait, lie in wait, lurk, nightwalk, officer, pad, peeler, pig, plainclothesman, police officer, private eye, prowl, pussyfoot, scrabble, scramble, shadow, shamus, shirk, sidle, skip tracer, skulk, sleuth, sleuthhound, slink, slip, snake, sneak, spotter, stalk, steal, steal along, tec, the cops, the fuzz, the law, tippytoe, tiptoe, worm, worm along