U00DD

U+00DD is the Unicode code point for the Latin capital letter Y with acute, written as Ý. It is part of the Latin-1 Supplement block and has the Unicode name LATIN CAPITAL LETTER Y WITH ACUTE. The character is used in several European languages to denote a distinct vowel sound or a modified form of Y, and it appears in alphabets such as Icelandic, Czech, and Slovak.

In typography, Ý is formed by adding a rightward acute accent to the standard letter Y. Its lowercase counterpart is ý, encoded at U+00FD. The two forms function as distinct letters in their respective languages, not merely as a variant of Y.

Encoding and computational forms: U+00DD is encoded in UTF-8 as the two-byte sequence C3 9D. In UTF-16 it is represented as 00DD, and in UTF-32 as 00000000 00000000 00000000 000000DD. In HTML, it can be represented by the named entity Ý for uppercase or by the numeric entity Ý.

Usage and language context: Ý is used in several languages to represent a vowel with a specific quality or length. In Icelandic, Czech, and Slovak orthographies, it functions as a distinct letter within the alphabet. Its capitalization and accents can influence pronunciation and grammatical forms, distinguishing it from the plain Y in words borrowed or adapted from other languages.

See also: Lowercase ý (U+00FD); other Latin letters with diacritics such as Ý vs Ÿ (Y with diaeresis).