Standard Lemma guide

dunder

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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  • /ˈdʌndə(ɹ)/
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -ʌndə(ɹ)

1

noun

Meaning 1

The lees or dregs of cane juice, used in the distillation of rum.

Definition source: English Wiktionary via Wiktextract

Usage: Caribbean, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Distillery effluent.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: stillage, sour mash, vinasse, vinhaca

Antonyms: none provided

3

noun

Meaning 3

A double underscore, __.

Definition source: English Wiktionary via Wiktextract

Usage: informal

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Compare Spanish redundar (“to overflow”).

Blend of double + under(score).