As a Noun:
1. A mark on a surface in the shape of a cross.
2. A line or cross drawn through the words on a page, usually because they are wrong. It is usually followed by the insertion of the correct word or words. English = correction.
3. Marks on a ballot paper that show who the person is voting for.
As a Verb or Adjective:
1. To mark a cross on a surface.
2. To put a line or a cross through words on a page, usually because they are wrong. You usually write the correct word or words down as well. English = mark.
3. To mark a ballot paper with a cross to show your preferred candidate. English = vote.