group-level written forms
Canonical reference record
JMnedict-backedKANJIDIC2 character context
Reference coverageDistinct recorded spellings6 Source spelling/reading rows7 Coverage levelExtended
Extended source depth
This reading group has a comparatively broad dictionary footprint across source-recorded spellings or records. The counts describe corpus coverage, not real-world popularity.
records contributing to this reading group
based only on the imported source footprint
Pronunciation & romanization
How to read Riuko
The kana reading is source-recorded. Romanization and mora segmentation are deterministic reading aids generated from that kana; pitch accent is not inferred.
Normalized to hiragana for comparison.
The same reading converted to katakana.
Macron-style display. Vowel-sequence form: Riuko. Personal spelling and true vowel boundaries can differ.
3 morae in this reading. Small ゃ/ゅ/ょ-type kana join the preceding mora.
Audio note: the play button uses Japanese text-to-speech provided by the visitor’s browser/device. It is a convenience preview, not a recorded native-speaker pronunciation or pitch-accent authority.
Reading profile
How Riuko is represented
These counts describe records in the imported name corpus. They are not a ranking of how popular a spelling is among people in Japan.
りうこ · リウこ
among the forms analyzed on this page
in the primary dictionary reading
small ゃ/ゅ/ょ-type kana combine with the preceding mora
recorded spelling
recorded spellings
recorded spelling
recorded spellings
JMnedict classification evidence
How this reading is classified in the source corpus
This separates dictionary classification from popularity. The same exact kana reading can be recorded as a given name, a surname, or both, and given-name records can carry male, female or unspecified source labels.
りうこ in the imported JMnedict corpus
7 source spelling/reading rows
0 source spelling/reading rows
row counts carrying each JMnedict source label
| Exact reading | Given-name evidence | Given-name labels | Surname evidence |
|---|---|---|---|
| りうこRiuko | 67 source rows | female 7source rows · distinct forms: female 6 | 00 source rows |
| りうこRiuko | 00 source rows | —source rows · distinct forms: — | 00 source rows |
Classification boundary: male/female/unspecified are labels attached to imported JMnedict name records. They are not population shares, probabilities, identity claims, or evidence that a spelling is currently common in Japan. A source row can also be repeated across different written forms, so row counts and distinct-writing counts are shown separately.
Spelling anatomy
Corpus structure behind Riuko
This section summarizes the exact source-recorded forms loaded for this reading group. Stroke and character-position statistics are descriptive corpus properties, not popularity or style scores.
3–24 strokes observed span
among forms with complete KANJIDIC2 stroke data
all component kanji loaded as jōyō/jinmeiyō classes
contains at least one character outside that loaded classification
| Reading | Romanization | Morae | Forms |
|---|---|---|---|
| りうこ | Riuko | 3 | 7 |
Recurring adjacent kanji sequences
Shown only when the same adjacent two-kanji sequence occurs in at least two analyzed source forms. Open a sequence in Kanji Pair Research for corpus co-occurrence context.
Reading ambiguity
Can the same writing be read another way?
1 of 7 displayed written forms have more than one given-name reading somewhere in the active JMnedict corpus. This is dictionary-record ambiguity, not a prediction of how a particular person reads the name.
distinct spellings displayed on this page
exact written forms with 2+ source readings
within this active given-name corpus
distinct kana readings for one displayed writing
竜子
6 source-recorded readings
A reading shown without a link is still source-recorded, but its destination group does not currently meet the canonical publication standard. Strong reference pages do not promote limited records merely to create extra internal links.
Kanji role reference
How recurring characters function across Riuko spellings
Position counts are calculated only from the distinct written forms analyzed for this page. KANJIDIC2 nanori are character-level name-reading references; they are not used here to decompose or assert the reading of a specific multi-kanji name.
| Kanji | Character glosses | Forms | First | Final | Internal | Solo | Strokes | KANJIDIC2 nanori | Loaded class |
|---|---|---|---|---|---|---|---|---|---|
| 子 | child, sign of the rat, 11PM-1AM | 6 | 0 | 6 | 0 | 0 | 3 | い, き, ぎ, く +2 | Jōyō · KANJIDIC grade 1 |
| 宇 | eaves, roof, house | 2 | 0 | 0 | 2 | 0 | 6 | いえ, たか, ひろ, ひろし | Jōyō · KANJIDIC grade 6 |
| 利 | profit, advantage, benefit | 1 | 1 | 0 | 0 | 0 | 7 | かが, と, とし, のり +2 | Jōyō · KANJIDIC grade 4 |
| 梨 | pear tree | 1 | 1 | 0 | 0 | 0 | 11 | か | Jōyō · KANJIDIC grade 4 |
| 璃 | glassy, lapis lazuli | 1 | 1 | 0 | 0 | 0 | 15 | あき | Jōyō · KANJIDIC grade 8 |
| 有 | possess, have, exist | 1 | 0 | 0 | 1 | 0 | 6 | あ, あら, あり, ある +3 | Jōyō · KANJIDIC grade 3 |
| 竜 | dragon, imperial | 1 | 1 | 0 | 0 | 0 | 10 | りう | Jōyō · KANJIDIC grade 8 |
Counts describe this source-recorded spelling set, not population use. A repeated kanji can contribute to more than one position role across different spellings.
Exact writing research map
Move from a spelling to its readings, characters and literal sequence context
These relationships are exact and source-backed. Whole-name readings shown in each card come from JMnedict within the current name class; exact-writing search can surface records from other name classes. Character links open KANJIDIC2-backed kanji pages. Sequence context means the same kanji string occurs contiguously in another recorded written form—it does not prove shared origin or meaning.
Exact written form
りうこ
Source-recorded full-name readings in this name class
Riukoりうこ · this page
Characters in order
りKanaうKanaこKana
Exact written form
リウ子
Source-recorded full-name readings in this name class
Riukoりうこ
Characters in order
Exact written form
りう子
Source-recorded full-name readings in this name class
Riukoりうこ · this page
Characters in order
Exact written form
利宇子
Source-recorded full-name readings in this name class
Riukoりうこ · this page
Characters in order
Exact written form
梨宇子
Source-recorded full-name readings in this name class
Riukoりうこ · this page
Characters in order
Exact written form
璃有子
Source-recorded full-name readings in this name class
Riukoりうこ · this page
Characters in order
Exact written form
竜子
Source-recorded full-name readings in this name class
Characters in order
For VPS safety, contiguous-sequence lookups are limited to six 2–4 kanji forms per canonical page and cached for 12 hours per active JMnedict generation.
Corpus pattern
Kanji recurring across Riuko spellings
Only characters appearing in at least two distinct analyzed spellings are shown here. Frequency describes this source-recorded spelling set, not real-world baby-name popularity.
Same reading, different writing
Explore written forms of Riuko
7 source-recorded forms use the primary source reading りうこ. Other source readings can appear in this romanized group when the imported records converge on the same index form. Use Compare to inspect exact spellings side by side.
りうこ
りうこ · Riuko
This written form uses kana rather than kanji, so there are no character-level kanji glosses to combine.
Character-set checkKana spelling
リウ子
リウこ · Riuko
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
りう子
りうこ · Riuko
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
利宇子
りうこ · Riuko
利profit, advantage, benefit宇eaves, roof, house, heaven子child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
梨宇子
りうこ · Riuko
梨pear tree宇eaves, roof, house, heaven子child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
璃有子
りうこ · Riuko
璃glassy, lapis lazuli有possess, have, exist, happen子child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
竜子
りうこ · Riuko
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded readings
Exact written-form relationship inside the imported given-name corpus.
Spelling comparator
Compare Riuko forms side by side
Each exact written spelling appears once in this table even when JMnedict records more than one reading for that writing. Stroke totals and character glosses come from KANJIDIC2 when all component kanji are available.
| Spelling | One source reading | Character-level glosses | Total strokes | Loaded character class |
|---|---|---|---|---|
| りうこ | りうこ | Kana-only spelling | — | Kana spelling |
| リウ子 | リウこ | 子 — child, sign of the rat | 3 | All kanji jōyō/jinmeiyō-classified |
| りう子 | りうこ | 子 — child, sign of the rat | 3 | All kanji jōyō/jinmeiyō-classified |
| 利宇子 | りうこ | 利 — profit, advantage · 宇 — eaves, roof · 子 — child, sign of the rat | 16 | All kanji jōyō/jinmeiyō-classified |
| 梨宇子 | りうこ | 梨 — pear tree · 宇 — eaves, roof · 子 — child, sign of the rat | 20 | All kanji jōyō/jinmeiyō-classified |
| 璃有子 | りうこ | 璃 — glassy, lapis lazuli · 有 — possess, have · 子 — child, sign of the rat | 24 | All kanji jōyō/jinmeiyō-classified |
| 竜子 | りうこ | 竜 — dragon, imperial · 子 — child, sign of the rat | 13 | All kanji jōyō/jinmeiyō-classified |
What does Riuko mean?
There is not necessarily one fixed English meaning. The reading identifies the spoken name; different written forms can use different kanji. Character glosses describe individual kanji and should not be treated as proof of the intention behind a particular person’s name.
Related readings
More names beginning with りう
Related by the opening kana of the dictionary reading. This is a deterministic browsing relationship, not a claim that the names share the same meaning.
Evidence on this page
What each source establishes
JMnedict establishes recorded written forms, readings and name classifications; where safely associated, this page can also show JMnedict-supplied trans_det source text without treating it as a whole-name meaning. KANJIDIC2 supplies character readings, nanori, stroke counts, grade classes and English character glosses. The Ministry of Justice remains the official reference for Japanese child-name character rules. The Agency for Cultural Affairs romanization guidance is the reference for generated Latin-script reading aids.
JMnedictChecked 17 Sep 2026Active data built 16 Sep 2026Stored status: downloaded
KANJIDIC2Checked 17 Sep 2026Active data built 17 Sep 2026
Japan Ministry of Justice — characters usable in children’s namesChecked 17 Sep 2026
Japan Agency for Cultural Affairs — Romanization Rules (2025)Checked 17 Sep 2026
Source boundary
The spelling-frequency and structural counts on this page are calculated from imported JMnedict records. They are corpus counts, not population-frequency claims. KANJIDIC2 supplies the kanji metadata used in character and stroke comparisons.
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