kaizen
/ˈkaɪˌzən/noun, verb
kaizen is spelled K-A-I-Z-E-N: 6 letters. It appears about once in every 9 million words in written English, the 87,317th most frequent word form (wordfreq, 2021 data). As a noun, kaizen means “A Japanese business practice of continuous improvement in performance and productivity” (English Wiktionary, September 2026). The plural of kaizen is kaizens.
How many letters and syllables are in kaizen?
| Letters | 6: K-A-I-Z-E-N |
|---|---|
| In writing | about once in every 9 million words; the 87,317th 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 kaizen?
Kaizen appears about once in every 9 million words in written English, the 87,317th 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).
How do you pronounce kaizen?
- /ˈkaɪˌzən/
- /ˈkaɪˌzɛn/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of kaizen
- kaizens plural, present, singular, he/she/it
- kaizening participle, present
- kaizened participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does kaizen mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A Japanese business practice of continuous improvement in performance and productivity.
- 2
Continuous improvement generally.
verb
- 1
To apply continuous improvement to (a task, or the worker who performs it).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Kaizen in Spanish, French, German and Portuguese
In the sense Japanese business practice of continuous improvement:
| Language | Words |
|---|---|
| French | kaizen |
| Portuguese | kaizen |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does kaizen come from?
From Japanese 改善 (kaizen かいぜん), from Middle Chinese 改善 (kój-dʒjén) (compare Mandarin gǎishàn 改善), from Old Chinese 改善 (*qˁəʔ-ɡenʔ "to correct errors"), from 改 ("to change") + 善 ("good"). Introduced to English in 1959 by Boyé Lafayette De Mente in his book Japanese Etiquette and Ethics in Business.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).