erase

[Gonzalesalix]

remove by or as if by rubbing or erasing

[Williamorect]

wipe out digitally or magnetically recorded information

[LouissaRini]

to remove markings or information

[Sonia]

To obliterate information from (a storage medium), such as to clear or (with magnetic storage) to demagnetize.

[rekha patel]

to rub or scrape out, as letters or characters written, engraved, or painted; to efface; to expunge; to cross out; as, to erase a word or a name

[Williebit]

fig.: To obliterate; to expunge; to blot out; -- used of ideas in the mind or memory