tec vs gumshoe

tec and gumshoe both are nouns.

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

As nouns, gumshoe is a hyponym of tec; that is, gumshoe is a word with a more specific, narrower meaning than tec:

Other hyponyms of tec include dick, hawkshaw, plainclothesman, tracer.

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