To check spelling errors in a document, the word application uses the to determine appropriate spelling.

I think it would be Spell Check

I'm also pretty sure it's spell check

a macro is a tool that allows you to automate tasks and add functionality to your forms, reports, and controls. for example, if you add a command button to a form, you associate the button's onclick event to a macro, and the macro contains the commands that you want the button to perform each time it is clicked.