The document discusses the development of new vocabulary terms during the early 1900s relating to automobiles, airplanes, the Second Boer War, and cinema. Key terms invented during this period include "dashboard," "radiator," "speedometer," "aeroplane," "fuselage," "aileron," "pilot," "dug-out," "tin hat," "no man's land," and terms for types of early movie theaters like "cinema theatres" and "picture palaces." Compound words combining existing terms into new meanings also emerged during this time period, especially relating to war.