Erasure is the act of erasing, deleting, or removing something. It's tricky to write an essay on a typewriter instead of a computer, because it's hard to hide any erasures.

An erasure can be made, appropriately, by erasing pencilled words with an eraser, but there are many other kinds of erasure. You can experience an accidental erasure of a whole day's work by hitting the wrong button on your laptop, and you can choose to hide details of your past with the kind of erasure that involves leaving certain information out when you tell your story. The Latin root is eradere, "scrape off" or "remove."

Definitions of erasure
  1. noun
    deletion by an act of expunging or erasing
    synonyms: expunction, expunging
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    type of:
    the act of deleting something written or printed
  2. noun
    a correction made by erasing
    “there were many erasures in the typescript”
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    type of:
    something substituted for an error
  3. noun
    a surface area where something has been erased
    “another word had been written over the erasure
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    type of:
    area, expanse, surface area
    the extent of a 2-dimensional surface enclosed within a boundary
Word Family