To close a window (typically by clicking a button marked with an X symbol).
To cross out with a series of the letter X, or with scribbles or lines.
To remove a runner from the bases via a double play or pick off play
To kill; assassinate.
To obliterate (information) from a storage medium, such as to clear or to overwrite.
To obliterate information from (a storage medium), such as to clear or (with magnetic storage) to demagnetize.
To disregard (a group, an orientation, etc.); to prevent from having an active role in society.
to remove markings or information
To be erased (have markings removed, have information removed, or be cleared of information).
The operation of deleting data.