The cold war Communism against which many of us defined ourselves for 45 years is dead.

"He has turned his back on the fundamental convictions that have defined American conservatism for 40 years."

His courses in philosophy of religion and American philosophy defined those fields for many years.

Lawyers and philosophers have been wrestling with the question of how to define free speech for at least 200 years.

Tupolev's design approach in these two airplanes defined for many years the trends of heavy aircraft development, civil and military.

Crispin wondered where his anger was: it had defined him for two years.

This other, smaller section defined the eastern end of the Cherokee Nation for 12 years.

The length of studies at the Academy had been defined for 4 years.

The new alliances effectively end Israel's isolation, which defined Mideast politics for 50 years.

It had defined her for too many years ever to be abandoned.