tugger vs tug

tugger and tug both are nouns.

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

tugger (noun)	tug (noun)
someone who pulls or tugs or drags in an effort to move something	a sudden abrupt pull
	a powerful small boat designed to pull or push larger ships

tugger (verb)	tug (verb)
	struggle in opposition
	pull hard
	pull or strain hard at
	move by pulling hard
	carry with difficulty
	tow (a vessel) with a tug
	strive and make an effort to reach a goal