Standard Lemma guide

foo

intj · name · noun · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • UK: /fuː/
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -uː
  • homophone: -fu
  • CMU ARPABET: F UW1 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

intj

Meaning 1

Expression of disappointment or disgust.

Definition source: English Wiktionary via Wiktextract

Examples

  • Oh foo – the cake burnt!

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A mock deity of early science fiction fandom; a fannish ghod.

Definition source: English Wiktionary via Wiktextract

Usage: dated, humorous, slang

Topics: lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Alternative form of fu: an administrative subdivision of imperial China; the capital of such divisions.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative, historical, obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A metasyntactic variable used to represent an unspecified entity. If part of a series of such entities, it is often the first in the series, and followed immediately by bar.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, programming, sciences

Examples

  • Suppose we have two objects, foo and bar.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Alternative letter-case form of Foo (“placeholder god”).

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, slang, uncountable

Topics: lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Pronunciation spelling of fool.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, pronunciation-spelling, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

A minced form of fuck.

See foo. Used in this context by Jack Speer, originally for the fannish ghod of mimeography in the 1930s.

From Mandarin 府 (fǔ).

From Chinese 福 (fú, “fortunate; prosperity, good luck”), via its use as 福星 (Fúxīng, “Jupiter”) in Chinese statues of the Three Lucky Stars, picked up from c. 1935 as a nonsense word in Bill Holman's Smokey Stover comic strip, whence it was picked up by Pogo, Looney Tunes, and others. Used by Jack Speer as the name of a mock god of mimeography in the 1930s. Popularized in computing contexts by the Tech Model Railroad Club's 1959 Dictionary of the TMRC Language, which incorporated it into a parody of the Buddhist chant om mani padme hum, possibly under the influence of WWII military slang FUBAR, which had been repopularized by Joseph Heller's Catch-22.