Protection

Protection, name given to the encouragement of certain home products of a country by imposing duties on foreign products of the class, opposed to free-trade.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Protagoras * Protestantism
[wait for the fun]
Proletariat
Prometheus
Propaganda
Propertius, Sextus
Prophecy
Prophets
Proselytes
Proserpina
Prospero
Protagoras
Protection
Protestantism
Protestants
Proteus
Protogenes
Protoplasm
Proudhon, Pierre Joseph
Prout, Samuel
Prout, Father
Provençal Language
Provence