The principal organization for golf professionals in the USA.

It is the principal intergovernmental organization in the field of migration.

The leader of Belgium's principal Jewish organization was shot Tuesday in a hospital parking lot and died early today.

In the United Kingdom there are three principal organizations:

It is hardly surprising that the Soviet Union would turn to its principal scientific organization to perform a vital intelligence function.

Since the 1930's the party had linked itself to the principal organizations of workers, peasants and middle-class professionals.

Erm, the principal voluntary organization for the mentally ill.

The American League," Johnson declared, "will be the principal organization of the country within a very short time.

Today, the principal international standard-setting organizations have representation from many countries, including China, but American interests often carry the greatest influence.

Because the director already controls most of the country's human intelligence activities, this would place all of America's principal spying organizations under one manager.