Well-defined

ja

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Well-defined

Quality:

Well-defined - (of an expression) whose definition assigns it a unique interpretation or value. Article “Well-defined” in Japanese Wikipedia has 19.7 points for quality (as of July 1, 2026). The article contains 12 references and 8 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 1.04 points.

This article has the best quality in German Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Well-defined”, its content was written by 31 registered users of Japanese Wikipedia and edited by 248 registered Wikipedia users in all languages.

The article is cited 210 times in Japanese Wikipedia and cited 660 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Japanese): #2030 in August 2019
  • Global: #5537 in April 2003

The highest popularity rank from 2008:

  • Local (Japanese): #58779 in June 2021
  • Global: #111572 in June 2015

There are 16 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1German (de)
Wohldefiniertheit
25.6121
2Hindi (hi)
सुपरिभाषित
24.85
3English (en)
Well-defined expression
24.6618
4Czech (cs)
Korektně definovaný
19.7584
5Japanese (ja)
Well-defined
19.7002
6Arabic (ar)
عبارة معرفة جيدا
19.2414
7Romanian (ro)
Expresie bine definită
16.7362
8Indonesian (id)
Ekspresi terdefinisi
15.6418
9Swedish (sv)
Väldefinierad
12.6041
10Persian (fa)
خوش‌تعریف
8.8788
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Well-defined" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Well-defined expression
832 322
2German (de)
Wohldefiniertheit
421 982
3Japanese (ja)
Well-defined
195 715
4Spanish (es)
Bien definido
88 895
5Chinese (zh)
定义良好
72 810
6Hebrew (he)
מוגדר היטב
35 810
7Persian (fa)
خوش‌تعریف
21 896
8Portuguese (pt)
Bem definido
18 181
9Hindi (hi)
सुपरिभाषित
12 533
10Korean (ko)
잘 정의됨
6 672
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Well-defined" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Well-defined expression
1 057
2Japanese (ja)
Well-defined
548
3German (de)
Wohldefiniertheit
485
4Chinese (zh)
定义良好
214
5Spanish (es)
Bien definido
68
6Persian (fa)
خوش‌تعریف
62
7Hebrew (he)
מוגדר היטב
35
8Romanian (ro)
Expresie bine definită
27
9Portuguese (pt)
Bem definido
19
10Dutch (nl)
Welgedefinieerdheid
15
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Well-defined" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Well-defined expression
78
2German (de)
Wohldefiniertheit
68
3Japanese (ja)
Well-defined
31
4Persian (fa)
خوش‌تعریف
10
5Spanish (es)
Bien definido
9
6Hebrew (he)
מוגדר היטב
9
7Dutch (nl)
Welgedefinieerdheid
9
8Portuguese (pt)
Bem definido
6
9Chinese (zh)
定义良好
6
10Hindi (hi)
सुपरिभाषित
5
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Well-defined" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Persian (fa)
خوش‌تعریف
1
2Arabic (ar)
عبارة معرفة جيدا
0
3Czech (cs)
Korektně definovaný
0
4German (de)
Wohldefiniertheit
0
5English (en)
Well-defined expression
0
6Spanish (es)
Bien definido
0
7Hebrew (he)
מוגדר היטב
0
8Hindi (hi)
सुपरिभाषित
0
9Indonesian (id)
Ekspresi terdefinisi
0
10Japanese (ja)
Well-defined
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Well-defined" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Japanese (ja)
Well-defined
210
2German (de)
Wohldefiniertheit
109
3English (en)
Well-defined expression
87
4Hebrew (he)
מוגדר היטב
72
5Romanian (ro)
Expresie bine definită
44
6Spanish (es)
Bien definido
38
7Chinese (zh)
定义良好
31
8Persian (fa)
خوش‌تعریف
19
9Portuguese (pt)
Bem definido
16
10Korean (ko)
잘 정의됨
9
More...

Scores

Estimated value for Wikipedia:
Japanese:
Global:
Popularity in June 2026:
Japanese:
Global:
Popularity in all years:
Japanese:
Global:
Authors in June 2026:
Japanese:
Global:
Registered authors in all years:
Japanese:
Global:
Citations:
Japanese:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
عبارة معرفة جيدا
csCzech
Korektně definovaný
deGerman
Wohldefiniertheit
enEnglish
Well-defined expression
esSpanish
Bien definido
faPersian
خوش‌تعریف
heHebrew
מוגדר היטב
hiHindi
सुपरिभाषित
idIndonesian
Ekspresi terdefinisi
jaJapanese
Well-defined
koKorean
잘 정의됨
nlDutch
Welgedefinieerdheid
ptPortuguese
Bem definido
roRomanian
Expresie bine definită
svSwedish
Väldefinierad
zhChinese
定义良好

Popularity rank trends

Best Rank Japanese:
#58779
06.2021
Global:
#111572
06.2015

AI rank trends

Best Rank Japanese:
#2030
08.2019
Global:
#5537
04.2003

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Well-defined from Wikipedia articles about Vacuous truth, Algorithm, Formal system, Random experiment and Abelian group. Whereas reading the article about Well-defined people most often go to Wikipedia articles on Undefined, Mathematical expression, Equivalence relation, Pathological and Definition.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Japanese Wikipedia the most popular articles on that day were: 橋本愛 (1996年生), 超ときめき♡宣伝部, 塩貝健人, 鈴木彩艶, 泉里香, 谷口彰悟, 田中みな実, 佐野海舟, アーリング・ハーランド, 後藤輝樹.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information