transport vs tug

transport and tug both are nouns.

Word	Noun	Adjective	Verb	Adverb
transport	Yes	No	Yes	No
tug	Yes	No	Yes	No

As verbs, tug is a hyponym of transport; that is, tug is a word with a more specific, narrower meaning than transport:

transport: move while supporting, either in a vehicle or in one's hands or on one's body
tug: carry with difficulty

Other hyponyms of transport include shoulder, port, bear, bucket, return, pipe in, port, porter, pack, cart, fly, haul, lug, tote, drive, motor, chariot, bring, convey, take.

transport (noun)	tug (noun)
the commercial enterprise of moving goods and materials	a sudden abrupt pull
the act of moving something from one location to another	a powerful small boat designed to pull or push larger ships
something that serves as a means of transportation
a mechanism that transports magnetic tape across the read/write heads of a tape playback/recorder
an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
a state of being carried away by overwhelming emotion

transport (verb)	tug (verb)
move while supporting, either in a vehicle or in one's hands or on one's body	struggle in opposition
send from one person or place to another	pull hard
hold spellbound	pull or strain hard at
move something or somebody around; usually over long distances	move by pulling hard
transport commercially	carry with difficulty
	tow (a vessel) with a tug
	strive and make an effort to reach a goal