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Evidence-led referenceJapanese names, readings and kanji
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ReferenceNamesIsako
Canonical reference record
JMnedict-backedKANJIDIC2 character context
Japanese given name

Isako

いさこ

Female-classified given-name records.

いさこイサコIsako
Compare spellings
Reference coverage

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.

Distinct recorded spellings121

group-level written forms

Source spelling/reading rows122

records contributing to this reading group

Coverage levelExtended

based only on the imported source footprint

Pronunciation & romanization

How to read Isako

The kana reading is source-recorded. Romanization and mora segmentation are deterministic reading aids generated from that kana; pitch accent is not inferred.

Source readingいさこ

Normalized to hiragana for comparison.

Katakana formイサコ

The same reading converted to katakana.

RomanizationIsako

Macron-style display. Vowel-sequence form: Isako. Personal spelling and true vowel boundaries can differ.

Mora segmentationい · さ · こ

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 Isako 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.

Recorded kana readings2

いさこ · イサこ

Kanji-based spellings121

among the forms analyzed on this page

Kana characters3

in the primary dictionary reading

Morae3

small ゃ/ゅ/ょ-type kana combine with the preceding mora

Kana-only1

recorded spelling

1-kanji forms2

recorded spellings

2-kanji forms12

recorded spellings

3-kanji forms107

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.

Primary reading recorded asGiven name

いさこ in the imported JMnedict corpus

Given-name written forms122

123 source spelling/reading rows

Surname written forms0

0 source spelling/reading rows

Given-name labelsfemale 123

row counts carrying each JMnedict source label

Exact readingGiven-name evidenceGiven-name labelsSurname evidence
いさこIsako122123 source rowsfemale 123source rows · distinct forms: female 12200 source rows
いさごIsago00 source rows—source rows · distinct forms: —1112 source rows
いさこIsako00 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 Isako

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.

Kanji forms with complete stroke data121

3–31 strokes observed span

Median total strokes19

among forms with complete KANJIDIC2 stroke data

All-kanji name-classified forms120

all component kanji loaded as jōyō/jinmeiyō classes

Other/unclassified kanji forms1

contains at least one character outside that loaded classification

Source-reading distribution
ReadingRomanizationMoraeForms
いさこIsako3122
Recurring adjacent kanji sequences
佐子13 analyzed forms沙子13 analyzed forms砂子13 analyzed forms左子12 analyzed forms紗子12 analyzed forms瑳子9 analyzed forms

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?

10 of 80 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.

Written forms checked80

distinct spellings displayed on this page

Multiple recorded readings10

exact written forms with 2+ source readings

Single recorded reading69

within this active given-name corpus

Largest reading set12

distinct kana readings for one displayed writing

一咲子
2 source-recorded readings
Isakoいさこ · this pageHisakoひさこ
五三子
2 source-recorded readings
Isakoいさこ · this pageIsokoいそこ

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 Isako 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.

KanjiCharacter glossesFormsFirstFinalInternalSoloStrokesKANJIDIC2 nanoriLoaded class
子child, sign of the rat, 11PM-1AM1210121003い, き, ぎ, く +2Jōyō · KANJIDIC grade 1
伊Italy, that one14140006これ, ただ, よし, いと +1Jinmeiyō · KANJIDIC grade 9
佐assistant, help13001307すけJōyō · KANJIDIC grade 4
沙sand13101207—Jōyō · KANJIDIC grade 8
砂sand13101209いさ, ごJōyō · KANJIDIC grade 6
左left12001205そJōyō · KANJIDIC grade 1
紗gauze, gossamer120012010たえ, すずJinmeiyō · KANJIDIC grade 9
衣garment, clothes, dressing10100006—Jōyō · KANJIDIC grade 4
以by means of, because, in view of990005もちJōyō · KANJIDIC grade 4
瑳polish, brilliant white luster of a gem, artful smile9009014—Jinmeiyō · KANJIDIC grade 9
意idea, mind, heart9900013もと, よしJōyō · KANJIDIC grade 3
作make, production, prepare800807くり, さか, さっ, づくり +4Jōyō · KANJIDIC grade 2

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

いさこ

Search exact writing →
Source-recorded full-name readings in this name class
Isakoいさこ · this page
Characters in order
いKanaさKanaこKana

Showing research maps for the first 10 distinct written forms out of 122. 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 Isako 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.

子child, sign of the rat, 11PM-1AM121 of 122 analyzed forms伊Italy, that one14 of 122 analyzed forms佐assistant, help13 of 122 analyzed forms沙sand13 of 122 analyzed forms砂sand13 of 122 analyzed forms左left12 of 122 analyzed forms紗gauze, gossamer12 of 122 analyzed forms衣garment, clothes, dressing10 of 122 analyzed forms以by means of, because, in view of9 of 122 analyzed forms瑳polish, brilliant white luster of a gem, artful smile9 of 122 analyzed forms
Same reading, different writing

Explore written forms of Isako

122 source-recorded forms use the primary source reading いさこ. 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.

いさこ

いさこ · Isako

Katakana イサコMorae 3Strokes —

This written form uses kana rather than kanji, so there are no character-level kanji glosses to combine.

Character-set checkKana spelling
Search this exact writing

Showing the first 80 spelling/reading records out of 122 loaded records for this reading group. The group contains 121 distinct written spellings.

Spelling comparator

Compare Isako 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.

SpellingOne source readingCharacter-level glossesTotal strokesLoaded character class
いさこいさこKana-only spelling—Kana spelling
いさ子いさこ子 — child, sign of the rat3All kanji jōyō/jinmeiyō-classified
イサ子イサこ子 — child, sign of the rat3All kanji jōyō/jinmeiyō-classified
一三子いさこ一 — one, one radical (no.1) · 三 — three · 子 — child, sign of the rat7All kanji jōyō/jinmeiyō-classified
一咲子いさこ一 — one, one radical (no.1) · 咲 — blossom, bloom · 子 — child, sign of the rat13All kanji jōyō/jinmeiyō-classified
五三子いさこ五 — five · 三 — three · 子 — child, sign of the rat10All kanji jōyō/jinmeiyō-classified
五佐子いさこ五 — five · 佐 — assistant, help · 子 — child, sign of the rat14All kanji jōyō/jinmeiyō-classified
五左子いさこ五 — five · 左 — left · 子 — child, sign of the rat12All kanji jōyō/jinmeiyō-classified
五沙子いさこ五 — five · 沙 — sand · 子 — child, sign of the rat14All kanji jōyō/jinmeiyō-classified
五砂子いさこ五 — five · 砂 — sand · 子 — child, sign of the rat16All kanji jōyō/jinmeiyō-classified
五紗子いさこ五 — five · 紗 — gauze, gossamer · 子 — child, sign of the rat17All kanji jōyō/jinmeiyō-classified
亥歳子いさこ亥 — sign of the hog, 9-11PM · 歳 — year-end, age · 子 — child, sign of the rat22All kanji jōyō/jinmeiyō-classified
以佐子いさこ以 — by means of, because · 佐 — assistant, help · 子 — child, sign of the rat15All kanji jōyō/jinmeiyō-classified
以作子いさこ以 — by means of, because · 作 — make, production · 子 — child, sign of the rat15All kanji jōyō/jinmeiyō-classified
以咲子いさこ以 — by means of, because · 咲 — blossom, bloom · 子 — child, sign of the rat17All kanji jōyō/jinmeiyō-classified
以左子いさこ以 — by means of, because · 左 — left · 子 — child, sign of the rat13All 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 Isako 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 いさ

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 · mixed records · limited reference

Isami

104 recorded spellings

Explore →Given name · female · limited reference

Isao

91 recorded spellings

Explore →Given name · female · limited reference

Isae

82 recorded spellings

Explore →Given name · female · limited reference

Isayo

70 recorded spellings

Explore →Given name · female · limited reference

Isa

56 recorded spellings

Explore →Given name · male · limited reference

Isaburō

39 recorded spellings

Explore →Given name · male · limited reference

Isamu

30 recorded spellings

Explore →Given name · female · limited reference

Isana

23 recorded spellings

Explore →Given name · female · limited reference

Isaki

15 recorded spellings

Explore →Given name · male · limited reference

Isaku

8 recorded spellings

Explore →Given name · female · limited reference

Isaya

5 recorded spellings

Explore →Given name · male · limited reference

Isahiko

4 recorded spellings

Explore →
Continue research

Where to go next from Isako

Use literal reading, character and corpus relationships to continue without treating nearby records as automatically related.

Exact reading

Search いさこ

See source records matching this kana reading or beginning with it.

Continue →Reading family

I / い

Browse other public given names with the same opening reading family.

Continue →Character reference

子 — child, sign of the rat

Open the kanji page for readings, classifications and literal name-use context.

Continue →Character reference

伊 — Italy, that one

Open the kanji page for readings, classifications and literal name-use context.

Continue →Interactive discovery

Open Name Explorer

Use the same name type and 3-mora reading length as a starting point.

Continue →
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.

Review sources →