foom
interjection, noun, verb
foom is an interjection meaning “The sound of a muffled explosion” (English Wiktionary, September 2026). It is spelled F-O-O-M, and it appears about once in every 30 million words in written English (wordfreq, 2021 data).
What does foom mean?
interjection
- 1
The sound of a muffled explosion.
noun
- 1
A sudden increase in artificial intelligence such that an AI system becomes extremely powerful.
verb
- 1
To exhibit an AI foom.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of foom
- fooms plural, present, singular, he/she/it
- fooming participle, present
- foomed participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is foom?
Foom appears about once in every 30 million words in written English, the 167,786th 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).
Where does foom come from?
Imitative. Compare boom.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).