Home U+0300 to U+036F Combining Diacritical Marks
Glyph for U+0324
Source: Noto Sans

U+0324 COMBINING DIAERESIS BELOW

U+0324 was added to Unicode in version 1.1 (1993). It belongs to the block U+0300 to U+036F Combining Diacritical Marks in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. The glyph can, under circumstances, be confused with 4 other glyphs. In text U+0324 behaves as Combining Mark regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

The diaeresis ( dy-ERR-ə-sis, -⁠EER-; also known as the trema) and the umlaut () are two different diacritical marks that (in modern usage) look alike. They both consist of two dots ¨ placed over a letter, usually a vowel; when that letter is an i or a j, the diacritic replaces the tittle: ï. In computer systems, both forms have the same code point (binary code). Their appearance in print or on screen may vary between typefaces but rarely within the same typeface.

The "diaeresis" and the "umlaut" are diacritics marking two distinct phonological phenomena.

  • The "diaeresis" diacritic is used to mark the separation of two distinct vowels in adjacent syllables when an instance of diaeresis (or hiatus) occurs, so as to distinguish from a digraph or diphthong.
  • The "umlaut" diacritic, in contrast, indicates a sound shift phenomenon – also known as umlaut – in which a back vowel becomes a front vowel.

Neither of these phenomena occur in English, except in loanwords (like naïve) or for stylistic reasons (as in the Brontë family or Mötley Crüe).

These two diacritics have different origins, the diaeresis being considerably older. Nevertheless, in modern computer systems using Unicode, the umlaut and diaeresis diacritics are encoded identically. For example, U+00E4 ä LATIN SMALL LETTER A WITH DIAERESIS represents both a-umlaut and a-diaeresis.

The same mark, placed above or below the letter, is used in other contexts and for different purposes and meanings. For example, in Albanian, ë represents a schwa.

Representations

System Representation
804
UTF-8 CC A4
UTF-16 03 24
UTF-32 00 00 03 24
URL-Quoted %CC%A4
HTML-Escape ̤
Wrong windows-1252 Mojibake ◌̤
AGL: Latin-4 uni0324
AGL: Latin-5 uni0324
Adobe Glyph List dieresisbelowcmb

Related Characters

Confusables

Elsewhere

Complete Record

Property Value
Age 1.1 (1993)
Unicode Name COMBINING DIAERESIS BELOW
Unicode 1 Name NON-SPACING DOUBLE DOT BELOW
Block Combining Diacritical Marks
General Category Nonspacing Mark
Script Inherited
Bidirectional Category Nonspacing Mark
Combining Class Below
Decomposition Type None
Decomposition Mapping Glyph for U+0324 Combining Diaeresis Below
Lowercase
Simple Lowercase Mapping Glyph for U+0324 Combining Diaeresis Below
Lowercase Mapping Glyph for U+0324 Combining Diaeresis Below
Uppercase
Simple Uppercase Mapping Glyph for U+0324 Combining Diaeresis Below
Uppercase Mapping Glyph for U+0324 Combining Diaeresis Below
Simple Titlecase Mapping Glyph for U+0324 Combining Diaeresis Below
Titlecase Mapping Glyph for U+0324 Combining Diaeresis Below
Case Folding Glyph for U+0324 Combining Diaeresis Below
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Bidi Paired Bracket Glyph for U+0324 Combining Diaeresis Below
Bidi Paired Bracket Type None
Cased
Composition Exclusion
Case Ignorable
Full Composition Exclusion
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Dash
Deprecated
Default Ignorable Code Point
Diacritic
East Asian Width Ambiguous
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji
Emoji Presentation
Extender
Extended Pictographic
FC NFKC Closure Glyph for U+0324 Combining Diaeresis Below
Grapheme Cluster Break Extend
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
Hangul Syllable Type Not Applicable
Hyphen
ID Continue
Ideographic
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
ISO 10646 Comment
Joining Group No_Joining_Group
Join Control
Jamo Short Name
Joining Type Transparent
Line Break Combining Mark
Logical Order Exception
Math
Noncharacter Code Point
NFC Quick Check Maybe
NFD Quick Check Yes
NFKC Casefold Glyph for U+0324 Combining Diaeresis Below
NFKC Quick Check Maybe
NFKD Quick Check Yes
Numeric Type None
Numeric Value not a number
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Pattern Syntax
Pattern White Space
Prepended Concatenation Mark
Quotation Mark
Radical
Regional Indicator
Sentence Break Extend
Simple Case Folding Glyph for U+0324 Combining Diaeresis Below
Script Extension
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Vertical Orientation R
Variation Selector
Word Break Extend
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD