Collectively, peoples living nomadic, pastoral, hunter-gatherer or other ways of life outside the modern industrial norm.

Around Earth from east to west, or west to east, thus crossing all meridians. / In a large proportion of Earth; in various parts of Earth.

A particular trick move with a yo-yo.

plural of world-beater

(biology) A hypothetical precursor to life on Earth in which RNA acted both as an information-storage molecule and as a catalyst

Superior to all others of its sort.

(politics) collectively, all the countries that have democratic or capitalistic governments, as opposed to dictatorships or communist states

(physics) A path in spacetime, especially that traversed by an elementary particle from its creation to its destruction.

plural of world-war

plural of World Exposition