As professors retire, financially pressed universities are cutting tenure-track positions.

The professor made a bow and retired into the hall.

Most new tenure-track positions are created when older professors retire.

"When a professor retires, his position is not filled."

But his time of learning came immediately when the professor retired.

A professor at Stanford, now retired.

Fulfillment of a professor's post often requires that the previous professor has retired.

When a full professor retires at 65 (pension age in the Netherlands), the professor becomes emeritus professor.

When a grant fizzles, when a professor resigns, retires or just buys a new computer, work can get lost.

The technician's statement that the professor had retired was a falsehood.