regional

As a noun ethnicity

is the common characteristics of a group of people.

As an adjective regional is

regional.

As an adjective regional

is regional.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As adjectives the difference between regional and undefined

is that regional is regional while undefined is lacking a definition or value.

As nouns the difference between regional and dialect

is that regional is an entity or event with scope limited to a single region while dialect is a variety of a language (specifically, often a spoken variety) that is characteristic of a particular area, community or group, often with relatively minor differences in vocabulary, style, spelling and pronunciation.

As an adjective regional

is of, or pertaining to, a specific region or district.

As adjectives the difference between regional and state

is that regional is of, or pertaining to, a specific region or district while state is stately.

As nouns the difference between regional and state

is that regional is an entity or event with scope limited to a single region while state is a polity.

As a verb state is

to declare to be a fact.

As a proper noun State is

state University, as the shortened form of any public university name.

As adjectives the difference between regional and international

is that regional is of, or pertaining to, a specific region or district while international is of or having to do with more than one nation.

As nouns the difference between regional and international

is that regional is an entity or event with scope limited to a single region while international is someone who has represented their country in a particularly sport.

As a proper noun International is

international Airport, as the shortened form of an airport name.

As adjectives the difference between geographical and regional

is that geographical is of or relating to geography; geographic while regional is of, or pertaining to, a specific region or district.

As a noun regional is

an entity or event with scope limited to a single region.

As adjectives the difference between original and regional

is that original is relating to the origin or beginning; preceding all others while regional is of, or pertaining to, a specific region or district.

As nouns the difference between original and regional

is that original is an object or other creation (e.g. narrative work) from which all later copies and variations are derived while regional is an entity or event with scope limited to a single region.