JND
noun
JND is spelled J-N-D: 3 letters. It appears about once in every 60 million words in written English, the 243,301st most frequent word form (wordfreq, 2021 data). As a noun, JND means “Just-noticeable difference, the amount by which something must be changed in order for it to be detectable at least 50% of the time” (English Wiktionary, September 2026). The plural of JND is JNDs.
How many letters and syllables are in JND?
| Letters | 3: J-N-D |
|---|---|
| In writing | about once in every 60 million words; the 243,301st most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is JND?
JND appears about once in every 60 million words in written English, the 243,301st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of JND
- JNDs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does JND mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Just-noticeable difference, the amount by which something must be changed in order for it to be detectable at least 50% of the time.
Aleah's nosejob was not dramatic. It was more like a JND, around half her friends noticed it and the other half did not.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).