cleanroom
noun, verb
cleanroom is spelled C-L-E-A-N-R-O-O-M: 9 letters. It appears about once in every 14 million words in written English, the 111,684th most frequent word form (wordfreq, 2021 data). As a noun, cleanroom means “A room or environment that is controlled in such a way as to minimize airborne particulate matter, typically for the purpose of fabricating sensitive…” (English Wiktionary, September 2026). The plural of cleanroom is cleanrooms.
How many letters and syllables are in cleanroom?
| Letters | 9: C-L-E-A-N-R-O-O-M |
|---|---|
| In writing | about once in every 14 million words; the 111,684th 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 cleanroom?
Cleanroom appears about once in every 14 million words in written English, the 111,684th 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 cleanroom?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-cleanroom.wav, Wikimedia Commons (author and licence on each file's page).
Forms of cleanroom
- cleanrooms plural, present, singular, he/she/it
- clean room
- clean-room
- cleanrooming participle, present
- cleanroomed participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does cleanroom mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A room or environment that is controlled in such a way as to minimize airborne particulate matter, typically for the purpose of fabricating sensitive electronic or other devices.
- 2
The method of copying a design by reverse engineering and then recreating it without infringing any copyrights.
- 3
Being or relating to a software development process intended to produce software with a certifiable level of reliability.
verb
- 1
To copy (a design) by reverse engineering and then recreating it without infringing any copyrights.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Cleanroom in Spanish, French, German and Portuguese
In the sense room or environment controlled to minimize airborne particulate matter:
| Language | Words |
|---|---|
| French | salle blanche |
| German | Reinraum, Reinstraum |
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 cleanroom come from?
From clean + room.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).