Standard Lemma guide

ulp

intj · noun · 5 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.

  • General-American, Received-Pronunciation: /ʌlp/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

intj

Meaning 1

The sound of a person gulping in fear.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: gulp

Antonyms: none provided

2

noun

Meaning 2

The value that the least significant digit of a floating-point number represents, used as a measure of accuracy in numeric calculations.

Definition source: English Wiktionary via Wiktextract

Topics: computer, computing, engineering, mathematics, natural-sciences, physical-sciences, science, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Initialism of ubiquitin-like protein.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Abbreviation of ultra-luminous pulsar.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Initialism of unfair labor practice.

Definition source: English Wiktionary via Wiktextract

Usage: US, abbreviation, alt-of, initialism

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Imitative, or possibly a variant of gulp.

Abbreviation of unit in the last place or unit of least precision, coined in 1960 by Canadian mathematician and computer scientist William Kahan (born 1933).

Across languages

Translations

1 source translations are retained for this English entry.

  • Italian: ulp — value that the least significant digit of a floating-point number represents