Standard Lemma guide

ERD

noun · 4 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.

  • Received-Pronunciation: /ɜːd/
  • General-American: /ɝd/
  • Scotland: /ɛɾd/

1

noun

Meaning 1

Initialism of entity-relationship diagram.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Initialism of effective rim diameter, the maximum distance that spokes need to bridge going from one end of the wheelrim to the other.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

Topics: cycling, hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Alternative form of earth.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative, dialectal, rare

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The common European shrew (Sorex vulgaris); the shrewmouse or erd shrew.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences, zoology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

A variant of earth.

A clipping of erd shrew.

Across languages

Translations

2 source translations are retained for this English entry.

  • Persian: نرام — entity-relationship diagram
  • Persian: نمودار رابطه-موجودیت — entity-relationship diagram