Standard Lemma guide

redback

noun · 3 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

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1

noun

Meaning 1

A venomous spider, Latrodectus hasselti, endemic to Australia.

Definition source: English Wiktionary via Wiktextract

Usage: Australia

Examples

  • 1988 June 16, Stephanie Pain, Things that go plop in the night, New Scientist, page 78, “If you find a redback, squash it firmly,” advised one guide.
  • 2005 October, Martha Harrison, Brilliant 10: Marydianne Andrade, Popular Science, page 58, Andrade first encountered the redback— whose lethal bite gives it as infamous a reputation in Australia as the black widow enjoys here in North America—when her grad-school adviser asked to travel to go to Perth to study them.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A brown and white sandpiper (Calidris alpina), native to the Northern Hemisphere; the dunlin.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the yuan (CNY), the currency of the People's Republic of China (Red Chinese money)

Definition source: English Wiktionary via Wiktextract

Usage: slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From red + back.

Modelled after greenback, the currency of the United States of America, except using Communist Red

Across languages

Translations

3 source translations are retained for this English entry.

  • Chinese Mandarin: 紅背蜘蛛 /红背蜘蛛 (hóngbèizhīzhū) — Latrodectus hasselti
  • German: Rotrückenspinne — Latrodectus hasselti
  • Japanese: 背赤後家蜘蛛 (seakagokegumo) — Latrodectus hasselti
Real reading context

redback in complete knowledge articles