gumshoe vs tec

gumshoe and tec both are nouns.

Word	Noun	Adjective	Verb	Adverb
gumshoe	Yes	No	No	No
tec	Yes	No	No	No

As nouns, tec is a hypernym of gumshoe; that is, tec is a word with a broader meaning than gumshoe:

Other hypernyms of gumshoe include detective, investigator, police detective.

gumshoe (noun)	tec (noun)
a waterproof overshoe that protects shoes from water or snow	a police officer who investigates crimes
someone who is a detective