Which of the following is INCORRECTLY spelled.

The word Petitionar is incorrectly spelled. The correct spelling is Petitioner.

Here are the words and their correct spellings:

• Petitionar is a misspelling of the word petitioner.
• Passenger means a person who is traveling in a vehicle.
• Pepper means a hot, pungent spice made from the dried berries of a tropical plant.
• Piece means a part of something that is broken off or separated.