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Meaning of outer zones
The primary meaning of "outer zones" refers to the external or peripheral areas of a place, region, or system.
Etymology of outer zones
The word "outer" comes from Old English "ūtor", meaning "outer" or "external", which is derived from "ūt", meaning "out".
 The word "zone" comes from Latin "zona", meaning "girdle" or "belt", which is derived from Greek "ζώνη" (zōnē), meaning "girdle" or "belt".
 The phrase "outer zones" has been used in English since the 16th century to refer to external or peripheral areas.
Synonyms
                                                peripheral areas
                                                                        fringes
                                                                        outskirts
                                                                        borders
                                                                        edges
                                                                        perimeters
                                                                        surroundings
                                                                        environs
                                                                        outer limits
                                                                        outer reaches
                                                                        external areas
                                                                        marginal zones
                                                                        outlying districts
                                                                        remote areas
                                                                        distant regions
                                                                        far-off places
                                                                        exterior zones
                                                                        outer regions
                                                                        peripheral zones
                                                                        outer districts
                                                                        outskirt areas
                                                                        boundary zones
                                                                        limit zones
                                                                        marginal areas
                                                                        peripheral regions
                                                            
            Definitions
- The outer zones of a city are the areas on the outskirts, away from the central part.
- In geography, outer zones can refer to the peripheral regions of a country or continent.
- In astronomy, the outer zones of a planet or star refer to the external layers or regions.
Usage Examples
- The city's outer zones are experiencing rapid growth and development.
- The outer zones of the planet are composed of a thick layer of gas and dust.
- The company is expanding its operations to the outer zones of the city, where land is cheaper.
Antonyms
                                                central areas
                                                                        inner zones
                                                                        core regions
                                                                        middle sections
                                                                        inner cities
                                                                        downtown areas
                                                                        central districts
                                                                        inner districts
                                                                        core areas
                                                                        central zones
                                                                        inner regions
                                                                        middle zones
                                                                        core zones
                                                                        inner areas
                                                                        central regions