Standard Lemma guide

sustainer

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.

  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A person or thing that sustains.

Definition source: English Wiktionary via Wiktextract

Examples

  • 1724, Aaron Hill and William Bond, The Plain Dealer, No. 36, 24 July, 1724, London: S. Richardson & A. Wilde, p. 296, [...] not One in Fifty, of our Men of Fashion, or of Quality, as they call themselves, has an Understanding that is able to go alone. They are forc’d, therefore, to wait ’till they have their Sustainer’s Opinion to lean against, before they dare venture upon the Praise, even of what they are inclinable to think favourably of [...]

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A rocket engine that remains with a spacecraft during its ascent after the separation of the booster engines.

Definition source: English Wiktionary via Wiktextract

Topics: aeronautics, aerospace, business, engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A person who makes regular donations, especially to a public radio or television station.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A radio program without a commercial sponsor.

Definition source: English Wiktionary via Wiktextract

Usage: US, obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

someone who upholds or maintains

Definition source: Princeton WordNet 3.0

Examples

  • firm upholders of tradition
  • they are sustainers of the idea of democracy

Meaning relationships

Synonyms: upholder, maintainer

Antonyms: none provided

Broader terms: supporter, protagonist, champion, admirer, booster, friend

History

Etymology

From sustain + -er.