NPO
phrase, noun
NPO is spelled N-P-O: 3 letters. It appears about once in every 6 million words in written English, the 71,529th most frequent word form (wordfreq, 2021 data). As a phrase, NPO means “"nil per os" (nothing by mouth - nothing may be eaten or drunk)” (English Wiktionary, September 2026).
How many letters and syllables are in NPO?
| Letters | 3: N-P-O |
|---|---|
| In writing | about once in every 6 million words; the 71,529th 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 NPO?
NPO appears about once in every 6 million words in written English, the 71,529th 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 NPO
- NPOs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does NPO mean?
The meanings the English Wiktionary records, quoted as written there (source below).
phrase
- 1
"nil per os" (nothing by mouth - nothing may be eaten or drunk).
Near-synonym: parenterally
noun
- 1
Initialism of nonprofit organization.
- 2
Initialism of near-packaged optics.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
NPO in Spanish, French, German and Portuguese
In the sense initialism for non-profit organization – see also nonprofit:
| Language | Words |
|---|---|
| French | ASBL |
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.