Meet the diacritical marks

Quick copy

Details for U+0301

COMBINING ACUTE ACCENT

Exact sequence: ́

U+0301

Details for U+0308

COMBINING DIAERESIS

Exact sequence: ̈

U+0308

A combining mark attaches to a neighboring character. It can sit above or below a letter, and several marks can occur together.

Browse the individual mark guides, or copy a combining mark from the reference below.

One appearance, different encodings

é can be written as U+00E9, or as e (U+0065) followed by COMBINING ACUTE ACCENT (U+0301). These forms are canonically equivalent. Unicode normalization can convert between composed and decomposed forms.

A spacing accent symbol is not the same character as a combining mark. The dotted circle in Unicode charts shows where a mark sits; it is not part of the mark itself.

Marks in this reference

This list covers the 25 distinct marks in our precomposed A to Z Latin data. It is not a catalog of every Unicode combining mark.

Copy a combining mark to add after a letter.

Explore diacritical marks

Find a mark by its name, compare similar shapes and inspect its exact encoding.

Still under editorial review

These families remain available as individual Unicode records in the explorer.

  • inverted breve: U+0311 and its canonical composites are verified, but the source pack does not yet establish a sufficiently scoped current versus historical account of South Slavic accentology and its distinction from Greek perispomeni. Publishing from character names alone would overstate the usage evidence.
  • hook below: U+0321 and U+0322 are verified, but a complete account of historical palatalized and retroflex hook notation, its current replacements and valid representative combinations has not been established from the authoritative phonetic sources. Their Unicode records remain searchable in the explorer.

Sources, versions and limits

Encoded properties
Properties use Unicode 17.0.0. Normalization follows UAX #15; grapheme boundaries follow UAX #29. Script associations describe encoded properties, not language use.
Language evidence
CLDR 48.2and the IANA registry dated 2026-08-08. Main and auxiliary exemplars are distinct. CLDR exemplars are not complete orthographies.
Review and limitations
The dataset is derived from the sources above. Editorial guides cite additional scoped authorities. No native or specialist orthography approval is implied. Release scope date: 14 September 2026. Historic or specialist usage needs separate evidence. Registry-only records have unknown orthography in this release.
Reproduction and corrections
Downloads and licences · Coverage and held routes · Suggest a source-backed correction