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execute  [ˈɛksɪkjuːt] (verb)

executive  [ɛɡˈzɛkjʊtɪv] (noun / adjective)

Before you can execute a program, you need to compile it.
Before you can Checka program, you need to compile it.

The President is the chief executive of the U.S.A.
The President is the chief Check of the U.S.A.