arrow vs pointer

arrow and pointer both are nouns.

Word	Noun	Adjective	Verb	Adverb
arrow	Yes	No	No	No
pointer	Yes	No	No	No

As nouns, arrow and pointer are synonyms defined as:

arrow (noun)	pointer (noun)
a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other; intended to be shot from a bow	a strong slender smooth-haired dog of Spanish origin having a white coat with brown or black patches; scents out and points to game
a mark to indicate a direction or relation	an indicator as on a dial
	(computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions
	a mark to indicate a direction or relation