I. ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: gum (III) + shoe
1.
a. : a rubber overshoe
b. : a sneaker with a rubber sole
2. also gumshoer ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ : detective , policeman , investigator
II. adjective
: carried on or behaving surreptitiously
a gumshoe campaign
a gumshoe man
III. intransitive verb
: to go stealthily ; broadly : snoop , pry