To hinder or prevent.
To exclude or shut out; to bar.
To prohibit (a person or company that has been convicted of criminal acts in connection with a government program) from future participation in that program.
To refuse to accept.
To refuse a romantic advance.
To block a shot, especially if it sends the ball off the court.
A rejected takeoff.
A rejected defective product in a production line.
Something that is rejected.
An unpopular person.