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Borders between countries and regions

border

noun

the official line separating two countries or regions

line

noun

a border between two regions

frontier

noun

a border between two countries, especially one with official points where people or vehicles cross

state line

noun

a border between one state and another in a country with states

side

noun

one of the areas that are separated from each other by something such as a border or a river

border

noun

the area close to a border

no-man’s-land

noun

an area of land between two countries that is not controlled by either of them

boundary

noun

something such as a line on a map that marks where one area of land ends and another begins

demarcation

noun

the process of establishing borders or limits between areas, groups, or things

border

noun

close to or relating to a border

protologism

a new word or phrase invented in the hope that it will become generally used

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Open Dictionary

garbage patch

a collection of debris, mostly consisting of plastic, which moves around in the sea …

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