| AFTERWORLD | • afterworld n. A supposed world that is entered after death; the realm of the afterlife. • after-world n. Alternative spelling of afterworld. • AFTERWORLD n. a future world. | 
| ANTIWORLD | • antiworld n. (Astrophysics) A hypothetical world constructed from antimatter. • ANTIWORLD n. a hypothetical world composed of antimatter. | 
| COUNTERWORLD | • counterworld n. A world or realm that opposes or subverts the norms of another world or realm. • COUNTERWORLD n. a world imagined in contrast to our own. | 
| DEMIWORLD | • DEMIWORLD n. the demimonde, a class of women on the fringes of respectable society supported by wealthy lovers. | 
| DREAMWORLD | • dreamworld n. An imaginary world, such as experienced while dreaming. • dream-world n. Alternative spelling of dreamworld. • dream␣world n. Alternative spelling of dreamworld. | 
| LIFEWORLD | • lifeworld n. (Philosophy) The world "as lived" prior to reflective representation or analysis. • LIFEWORLD n. the way an individual experiences the world. | 
| MICROWORLD | • microworld n. The world as it exists at a microscopic scale, subject to quantum effects etc. • MICROWORLD n. a discrete area within a computer database. | 
| NANOWORLD | • nanoworld n. The sphere of influence of nanotechnology. • NANOWORLD n. the world of the very small. | 
| NETHERWORLD | • netherworld n. The place to which one’s spirit descends upon death, conceived as below the surface of the earth. • netherworld n. The locale of the spirit world or afterlife, whether deemed to be situated below the world of the living or not. • netherworld n. Specifically, a location of punishment in the afterlife; a hell. | 
| OTHERWORLD | • otherworld n. A world beyond death; an afterlife. • otherworld n. A world other than the everyday world. • Otherworld n. (Paganism) The other realms of existence beyond the world of mankind, especially the realms of the dead… | 
| SUBWORLD | • subworld n. A world that makes up part of a larger world. • SUBWORLD n. a subdivision of a sphere of interest. | 
| UNDERWORLD | • underworld n. (Religion or mythology) The world of the dead, located underneath the world of the living; the afterlife. • underworld n. That part of society that is engaged in crime or vice. • underworld n. (Video games) The portion of a game that is set below ground. | 
| WORLD | • world n. (With "the" or a plural possessive pronoun) The subjective human experience, regarded collectively;… • world n. (With "the" or a singular possessive pronoun) The subjective human experience, regarded individually. • world n. (Metonymically, with "the") A majority of people. |