Because he had arrived to the lunch room so quickly, John managed to get a tertiary position in line behind Sam and Linda.

In a building that only has three floors, the floor above the second is not only the final floor but also the tertiary one.

The letter ‘C’ is tertiary in the English alphabet, since it comes after both the letters A and B.

If I wake up, brush my teeth, and eat breakfast in the morning, eating breakfast is the tertiary event in my morning routine.

In the full name ‘John Wilkes Booth,’ the last name ‘Booth’ has a tertiary position in the entire thing.