group-level written forms
Canonical reference record
JMnedict-backedKANJIDIC2 character context
Japanese given name
Seishū
世舟
Given-name gender label not specified in these source records.
せいしゅうセイシュウSeishū
Reference coverageDistinct recorded spellings25 Source spelling/reading rows25 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 Seishū
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: Seishuu. Personal spelling and true vowel boundaries can differ.
4 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 Seishū 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.
せいしゅう
among the forms analyzed on this page
in the primary dictionary reading
small ゃ/ゅ/ょ-type kana combine with the preceding mora
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.
せいしゅう in the imported JMnedict corpus
26 source spelling/reading rows
2 source spelling/reading rows
row counts carrying each JMnedict source label
| Exact reading | Given-name evidence | Given-name labels | Surname evidence |
|---|---|---|---|
| せいしゅうSeishū | 2626 source rows | unspecified 26source rows · distinct forms: unspecified 26 | 22 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 Seishū
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.
11–23 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 |
|---|---|---|---|
| せいしゅう | Seishū | 4 | 25 |
Reading ambiguity
Can the same writing be read another way?
10 of 25 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
政秀
2 source-recorded readings
Seishūせいしゅう · this pageMasahideまさひで
政秋
2 source-recorded readings
Seishūせいしゅう · this pageMasākiまさあき
正修
2 source-recorded readings
Seishūせいしゅう · this pageMasanobuまさのぶ
正周
2 source-recorded readings
Seishūせいしゅう · this pageMasachikaまさちか
正州
2 source-recorded readings
Seishūせいしゅう · this pageMasakuniまさくに
清周
2 source-recorded readings
KiyokaneきよかねSeishūせいしゅう · this page
清秀
2 source-recorded readings
KiyohideきよひでSeishūせいしゅう · this page
清秋
2 source-recorded readings
KiyoakiきよあきSeishūせいしゅう · this page
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 Seishū 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 |
|---|---|---|---|---|---|---|---|---|---|
| 正 | correct, justice, righteous | 5 | 5 | 0 | 0 | 0 | 5 | おお, くに, ま, まさし +1 | Jōyō · KANJIDIC grade 1 |
| 秋 | autumn | 4 | 0 | 4 | 0 | 0 | 9 | あい | Jōyō · KANJIDIC grade 2 |
| 青 | blue, green | 4 | 4 | 0 | 0 | 0 | 8 | お | Jōyō · KANJIDIC grade 1 |
| 舟 | boat, ship | 3 | 0 | 3 | 0 | 0 | 6 | — | Jōyō · KANJIDIC grade 8 |
| 洲 | continent, sandbar, island | 3 | 0 | 3 | 0 | 0 | 9 | — | Jinmeiyō · KANJIDIC grade 9 |
| 政 | politics, government | 3 | 3 | 0 | 0 | 0 | 9 | ただ, まさ | Jōyō · KANJIDIC grade 5 |
| 修 | discipline, conduct oneself well, study | 3 | 0 | 3 | 0 | 0 | 10 | おき, なが, のぶ, おさむ | Jōyō · KANJIDIC grade 5 |
| 秀 | excel, excellence, beauty | 3 | 0 | 3 | 0 | 0 | 7 | しゅ, しょう, ひで, ひでし +1 | Jōyō · KANJIDIC grade 8 |
| 清 | pure, purify, cleanse | 3 | 3 | 0 | 0 | 0 | 11 | あき, さや, し, すが +3 | Jōyō · KANJIDIC grade 4 |
| 愁 | distress, grieve, lament | 2 | 0 | 2 | 0 | 0 | 13 | — | Jōyō · KANJIDIC grade 8 |
| 州 | state, province | 2 | 0 | 2 | 0 | 0 | 6 | くに | Jōyō · KANJIDIC grade 3 |
| 周 | circumference, circuit, lap | 2 | 0 | 2 | 0 | 0 | 8 | あまね, しゅ, す, ちか +4 | Jōyō · KANJIDIC grade 4 |
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
世舟
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
征洲
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
政修
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
政秀
Source-recorded full-name readings in this name class
Seishūせいしゅう · this pageMasahideまさひで
Characters in order
Exact written form
政秋
Source-recorded full-name readings in this name class
Seishūせいしゅう · this pageMasākiまさあき
Characters in order
Exact written form
星愁
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
晴州
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
栖集
Source-recorded full-name readings in this name class
Seishūせいしゅう · this page
Characters in order
Exact written form
正修
Source-recorded full-name readings in this name class
Seishūせいしゅう · this pageMasanobuまさのぶ
Characters in order
Exact written form
正周
Source-recorded full-name readings in this name class
Seishūせいしゅう · this pageMasachikaまさちか
Characters in order
Showing research maps for the first 10 distinct written forms out of 25. Every detailed spelling card below still links to exact-writing search and its component kanji.
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 Seishū 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.
正correct, justice, righteous5 of 25 analyzed forms秋autumn4 of 25 analyzed forms青blue, green4 of 25 analyzed forms舟boat, ship3 of 25 analyzed forms洲continent, sandbar, island3 of 25 analyzed forms政politics, government3 of 25 analyzed forms修discipline, conduct oneself well, study3 of 25 analyzed forms秀excel, excellence, beauty3 of 25 analyzed forms清pure, purify, cleanse3 of 25 analyzed forms愁distress, grieve, lament2 of 25 analyzed forms
Same reading, different writing
Explore written forms of Seishū
25 source-recorded forms use the primary source reading せいしゅう. 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.
世舟
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
征洲
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
政修
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
政秀
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
政秋
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
星愁
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
晴州
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
栖集
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
正修
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
正周
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
正州
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
正洲
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
正衆
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
清周
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
清秀
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
清秋
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
精秀
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
聖修
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Same writing, other recorded reading
Exact written-form relationship inside the imported given-name corpus.
聖宗
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
青愁
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
青洲
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
青秋
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
青舟
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
静秋
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
静舟
せいしゅう · Seishū
Character-set checkAll kanji are classified as jōyō/jinmeiyō in KANJIDIC2
Spelling comparator
Compare Seishū 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 |
|---|---|---|---|---|
| 世舟 | せいしゅう | 世 — generation, world · 舟 — boat, ship | 11 | All kanji jōyō/jinmeiyō-classified |
| 征洲 | せいしゅう | 征 — subjugate, attack the rebellious · 洲 — continent, sandbar | 17 | All kanji jōyō/jinmeiyō-classified |
| 政修 | せいしゅう | 政 — politics, government · 修 — discipline, conduct oneself well | 19 | All kanji jōyō/jinmeiyō-classified |
| 政秀 | せいしゅう | 政 — politics, government · 秀 — excel, excellence | 16 | All kanji jōyō/jinmeiyō-classified |
| 政秋 | せいしゅう | 政 — politics, government · 秋 — autumn | 18 | All kanji jōyō/jinmeiyō-classified |
| 星愁 | せいしゅう | 星 — star, spot · 愁 — distress, grieve | 22 | All kanji jōyō/jinmeiyō-classified |
| 晴州 | せいしゅう | 晴 — clear up · 州 — state, province | 18 | All kanji jōyō/jinmeiyō-classified |
| 栖集 | せいしゅう | 栖 — nest, rookery · 集 — gather, meet | 22 | All kanji jōyō/jinmeiyō-classified |
| 正修 | せいしゅう | 正 — correct, justice · 修 — discipline, conduct oneself well | 15 | All kanji jōyō/jinmeiyō-classified |
| 正周 | せいしゅう | 正 — correct, justice · 周 — circumference, circuit | 13 | All kanji jōyō/jinmeiyō-classified |
| 正州 | せいしゅう | 正 — correct, justice · 州 — state, province | 11 | All kanji jōyō/jinmeiyō-classified |
| 正洲 | せいしゅう | 正 — correct, justice · 洲 — continent, sandbar | 14 | All kanji jōyō/jinmeiyō-classified |
| 正衆 | せいしゅう | 正 — correct, justice · 衆 — masses, great numbers | 17 | All kanji jōyō/jinmeiyō-classified |
| 清周 | せいしゅう | 清 — pure, purify · 周 — circumference, circuit | 19 | All kanji jōyō/jinmeiyō-classified |
| 清秀 | せいしゅう | 清 — pure, purify · 秀 — excel, excellence | 18 | All kanji jōyō/jinmeiyō-classified |
| 清秋 | せいしゅう | 清 — pure, purify · 秋 — autumn | 20 | All kanji jōyō/jinmeiyō-classified |
The comparison table shows the first 16 distinct written forms; the detailed cards above show up to 80 spelling/reading records.
What does Seishū 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 せい
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.
Given name · male · limited reference
Seiji
142 recorded spellings
Explore →Given name · male · limited referenceSeīchirō
104 recorded spellings
Explore →Given name · male · limited referenceSeigorō
98 recorded spellings
Explore →Given name · male · limited referenceSeinosuke
86 recorded spellings
Explore →Given name · female · limited referenceSeika
80 recorded spellings
Explore →Given name · female · limited referenceSeiko
79 recorded spellings
Explore →Given name · mixed records · limited referenceSeira
79 recorded spellings
Explore →Given name · mixed records · limited referenceSeiki
69 recorded spellings
Explore →Given name · male · limited referenceSeitarō
66 recorded spellings
Explore →Given name · male · limited referenceSeijirō
64 recorded spellings
Explore →Given name · female · limited referenceSeikō
64 recorded spellings
Explore →Given name · female · limited referenceSeishi
56 recorded spellings
Explore →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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