7 letters · 9 points in Scrabble
noun a mark to indicate a direction or relation
noun an indicator as on a dial
noun (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
originFrom point + -er (agent noun suffix) or + -er (measurement suffix) (sense 4).
Etymology from Wiktionary, CC BY-SA 3.0