AlphabeticOrder

AlphabeticOrder["string₁","string₂"]

gives 1 if "string₁" appears before "string₂" in alphabetical order, -1 if it is after, and 0 if it is identical.

AlphabeticOrder["string₁","string₂",lang]

uses an ordering suitable for the language lang.

represents an operator form that compares strings when applied to "string₁", "string₂".

Details and Options

The language can be specified by a language standard name, as used in LanguageData, or by a language entity. It can also be an alphabet specification, as used in Alphabet.
The default language is $Language.
The following options can be given:

CaseOrdering	Automatic	how to order upper vs. lower case
IgnoreCase	False	whether to ignore case for ordering
IgnoreDiacritics	False	whether to ignore diacritics for ordering
IgnorePunctuation	False	whether to ignore punctuation for ordering
Language	$Language	what language or alphabet to assume

If an explicit language is specified in AlphabeticOrder[…,lang], it overrides any setting for the Language option.

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Check the order of two characters:

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Specify a language as the third argument:

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When digraphs exist in a language, they are equivalent to corresponding pairs of ASCII characters:

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