An eraser is an object used to remove marks from surfaces like paper or whiteboards. You can also use the word 'erasing' as a verb.
When we think of using something to erase, most people will picture rubbing out pencil marks on their math homework with a special tool called an eraser. But the word 'erasing' is more than just about correcting mistakes - it's also about eliminating or getting rid of things. If you're in charge of cleaning up after a big project and someone suggests "let's erasing all that extra stuff", they probably mean get rid of it, don't worry about keeping any of those unnecessary items around.
How common is "erasing"?
Word erasing is considered rare in modern English. It has a balanced usage among all categories: speech, fiction, newspapers and academic texts.
Definitions
verb
To remove markings or information
Example: I erased that note because it was wrong.
To obliterate information from (a storage medium), such as to clear or (with magnetic storage) to demagnetize.
Example: I'm going to erase this tape.
To obliterate (information) from a storage medium, such as to clear or to overwrite.
Example: I'm going to erase those files.
To remove a runner from the bases via a double play or pick off play
Example: Jones was erased by a 6-4-3 double play.
To be erased (have markings removed, have information removed or be cleared of information).
Example: The chalkboard erased easily.
To disregard (a group, an orientation, etc.); to prevent from having an active role in society.