Russian stress marks, ё and й

Quick copy

Details for U+0451

CYRILLIC SMALL LETTER IO

Exact sequence: ё

U+0451

Properties
Ll; CCC 0
HTML
ё
Word Alt+X
0451
Normalization
NFC: U+0451; NFD: U+0435 U+0308; NFKC: U+0451; NFKD: U+0435 U+0308
Details for U+0439

CYRILLIC SMALL LETTER SHORT I

Exact sequence: й

U+0439

Properties
Ll; CCC 0
HTML
й
Word Alt+X
0439
Normalization
NFC: U+0439; NFD: U+0438 U+0306; NFKC: U+0439; NFKD: U+0438 U+0306

Click a character to copy it. Use Details for its technical record.

Russian stress marks are normally omitted in general text. Dictionaries and learning materials can mark stress systematically, while ordinary writing may add an acute selectively to avoid ambiguity. [46], [9], [3]

Copy exact examples

Details for U+0430 U+0301

CYRILLIC SMALL LETTER A + COMBINING ACUTE ACCENT

Exact sequence: а́

U+0430 U+0301

Details for U+0435 U+0301

CYRILLIC SMALL LETTER IE + COMBINING ACUTE ACCENT

Exact sequence: е́

U+0435 U+0301

Spelling and status

Ё and й are alphabet letters rather than optional acute stress annotations. This collection separates those letters from a set of vowel-plus-acute sequences. Gramota's spelling guidance discusses selective stress marking; a copy table cannot locate the stress in an unfamiliar Russian word. [46], [9], [3]

Distinctions to preserve

Use Cyrillic letters for Russian. Latin e and Cyrillic е may look alike but have different code points. Й canonically decomposes to Cyrillic и plus breve. A stressed vowel often remains a multi-character sequence after NFC, and no universal Alt code represents every such sequence. [46], [9], [3], [1], [2]

Typing and text forms

Copying is exact; preview circles are excluded. Compare normalization forms.

Word for Windows
Select a hex code, then Alt+X; repeat for each scalar.
Mac and mobile
Hold a letter for supported variants; use Character Viewer on Mac or a language keyboard on mobile.
HTML
Use UTF-8 text or the numeric references in Details, in order.

Full typing instructions ·HTML, CSS and JavaScript entry ·Verified Alt codes.

Searchable character table

The letter set contains ё and й in both cases. The additional vowel-plus-acute strings demonstrate stress notation, not an expanded Russian alphabet or a claim that every combination is needed in every word. [46], [9], [3], [9], [1]

Russian stress marks, ё and й: exact character records
CopyUnicode identity and entry
CYRILLIC CAPITAL LETTER IO
Details
Properties
Lu; CCC 0
HTML
Ё
Word Alt+X
0401
Normalization
NFC: U+0401; NFD: U+0415 U+0308; NFKC: U+0401; NFKD: U+0415 U+0308
CYRILLIC CAPITAL LETTER SHORT I
Details
Properties
Lu; CCC 0
HTML
Й
Word Alt+X
0419
Normalization
NFC: U+0419; NFD: U+0418 U+0306; NFKC: U+0419; NFKD: U+0418 U+0306
CYRILLIC SMALL LETTER A + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
а́
Word Alt+X
0430 then 0301
Normalization
NFC: U+0430 U+0301; NFD: U+0430 U+0301; NFKC: U+0430 U+0301; NFKD: U+0430 U+0301
CYRILLIC SMALL LETTER IE + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
е́
Word Alt+X
0435 then 0301
Normalization
NFC: U+0435 U+0301; NFD: U+0435 U+0301; NFKC: U+0435 U+0301; NFKD: U+0435 U+0301
CYRILLIC SMALL LETTER IO + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
ё́
Word Alt+X
0451 then 0301
Normalization
NFC: U+0451 U+0301; NFD: U+0435 U+0308 U+0301; NFKC: U+0451 U+0301; NFKD: U+0435 U+0308 U+0301
CYRILLIC SMALL LETTER I + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
и́
Word Alt+X
0438 then 0301
Normalization
NFC: U+0438 U+0301; NFD: U+0438 U+0301; NFKC: U+0438 U+0301; NFKD: U+0438 U+0301
CYRILLIC SMALL LETTER O + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
о́
Word Alt+X
043E then 0301
Normalization
NFC: U+043E U+0301; NFD: U+043E U+0301; NFKC: U+043E U+0301; NFKD: U+043E U+0301
CYRILLIC SMALL LETTER U + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
у́
Word Alt+X
0443 then 0301
Normalization
NFC: U+0443 U+0301; NFD: U+0443 U+0301; NFKC: U+0443 U+0301; NFKD: U+0443 U+0301
CYRILLIC SMALL LETTER YERU + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
ы́
Word Alt+X
044B then 0301
Normalization
NFC: U+044B U+0301; NFD: U+044B U+0301; NFKC: U+044B U+0301; NFKD: U+044B U+0301
CYRILLIC SMALL LETTER E + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
э́
Word Alt+X
044D then 0301
Normalization
NFC: U+044D U+0301; NFD: U+044D U+0301; NFKC: U+044D U+0301; NFKD: U+044D U+0301
CYRILLIC SMALL LETTER YU + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
ю́
Word Alt+X
044E then 0301
Normalization
NFC: U+044E U+0301; NFD: U+044E U+0301; NFKC: U+044E U+0301; NFKD: U+044E U+0301
CYRILLIC SMALL LETTER YA + COMBINING ACUTE ACCENT
Details
Properties
Ll; CCC 0 / Mn; CCC 230
HTML
я́
Word Alt+X
044F then 0301
Normalization
NFC: U+044F U+0301; NFD: U+044F U+0301; NFKC: U+044F U+0301; NFKD: U+044F U+0301
CYRILLIC CAPITAL LETTER A + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
А́
Word Alt+X
0410 then 0301
Normalization
NFC: U+0410 U+0301; NFD: U+0410 U+0301; NFKC: U+0410 U+0301; NFKD: U+0410 U+0301
CYRILLIC CAPITAL LETTER IE + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Е́
Word Alt+X
0415 then 0301
Normalization
NFC: U+0415 U+0301; NFD: U+0415 U+0301; NFKC: U+0415 U+0301; NFKD: U+0415 U+0301
CYRILLIC CAPITAL LETTER IO + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Ё́
Word Alt+X
0401 then 0301
Normalization
NFC: U+0401 U+0301; NFD: U+0415 U+0308 U+0301; NFKC: U+0401 U+0301; NFKD: U+0415 U+0308 U+0301
CYRILLIC CAPITAL LETTER I + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
И́
Word Alt+X
0418 then 0301
Normalization
NFC: U+0418 U+0301; NFD: U+0418 U+0301; NFKC: U+0418 U+0301; NFKD: U+0418 U+0301
CYRILLIC CAPITAL LETTER O + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
О́
Word Alt+X
041E then 0301
Normalization
NFC: U+041E U+0301; NFD: U+041E U+0301; NFKC: U+041E U+0301; NFKD: U+041E U+0301
CYRILLIC CAPITAL LETTER U + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
У́
Word Alt+X
0423 then 0301
Normalization
NFC: U+0423 U+0301; NFD: U+0423 U+0301; NFKC: U+0423 U+0301; NFKD: U+0423 U+0301
CYRILLIC CAPITAL LETTER YERU + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Ы́
Word Alt+X
042B then 0301
Normalization
NFC: U+042B U+0301; NFD: U+042B U+0301; NFKC: U+042B U+0301; NFKD: U+042B U+0301
CYRILLIC CAPITAL LETTER E + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Э́
Word Alt+X
042D then 0301
Normalization
NFC: U+042D U+0301; NFD: U+042D U+0301; NFKC: U+042D U+0301; NFKD: U+042D U+0301
CYRILLIC CAPITAL LETTER YU + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Ю́
Word Alt+X
042E then 0301
Normalization
NFC: U+042E U+0301; NFD: U+042E U+0301; NFKC: U+042E U+0301; NFKD: U+042E U+0301
CYRILLIC CAPITAL LETTER YA + COMBINING ACUTE ACCENT
Details
Properties
Lu; CCC 0 / Mn; CCC 230
HTML
Я́
Word Alt+X
042F then 0301
Normalization
NFC: U+042F U+0301; NFD: U+042F U+0301; NFKC: U+042F U+0301; NFKD: U+042F U+0301

Sources and method

Usage statements link to the authority that supports their scope. Character names, categories, combining classes and normalization results come from the pinned Unicode data. A canonical decomposition does not establish language membership or spelling frequency.

Source access date: 2026-09-14.

Read the editorial method and inspect the underlying datasets.

Related reading

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