bear on vs tug

bear on is not a noun while tug is a noun.

Word	Noun	Adjective	Verb	Adverb
bear on	No	No	Yes	No
tug	Yes	No	Yes	No

bear on (noun)	tug (noun)
	a sudden abrupt pull
	a powerful small boat designed to pull or push larger ships

bear on (verb)	tug (verb)
have an effect upon	struggle in opposition
press, drive, or impel (someone) to action or completion of an action	pull hard
be relevant to	pull or strain hard at
keep or maintain in unaltered condition; cause to remain or last	move by pulling hard
	carry with difficulty
	tow (a vessel) with a tug
	strive and make an effort to reach a goal