eraser
UK: ɪˈreɪzə | US: ɪˈreɪsər
n. a tool, typically made of rubber or plastic, used to remove pencil or ink marks by rubbing.
The word "eraser" originates from the verb "erase," which comes from the Latin "erasus," past participle of "eradere" (to scrape out). The suffix "-er" is an English agentive suffix, indicating a tool or person that performs the action. Thus, an "eraser" literally means "a tool that erases." The term reflects the functional purpose of the object, evolving from the physical act of scraping or rubbing away marks.
She used an eraser to correct the mistake in her notebook.
The teacher handed out pencils and erasers to the students.
This eraser leaves smudges on the paper.
He chewed on the end of his eraser while thinking.
The whiteboard eraser was missing, so they used a cloth instead.