Standard Lemma guide

backwash

noun · verb · 13 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.

  • UK: /ˈbæk.wɒʃ/
  • US: /ˈbæk.wɑʃ/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ækwɒʃ
  • CMU ARPABET: B AE1 K W AA2 SH Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A backward flow of water, as from oars, a propeller, breaking waves, etc.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The similar flow of air from an aircraft engine.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The result or consequence of an event; an aftermath.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The saliva, spit or food particles that have flowed back into a drink after someone has drunk from it.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

The situation where economic growth in one area harms other areas by attracting people and business away from those areas.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: economics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

An obscure place; a backwater.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

Synonym of washback.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: education

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: washback

Antonyms: none provided

8

verb

Meaning 8

To operate a water filter in the reverse direction in order to clean it.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

To affect with backwash.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To clean the oil from wool after combing.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

the wave that spreads behind a boat as it moves forward

Definition source: Princeton WordNet 3.0

Examples

  • the motorboat's wake capsized the canoe

Meaning relationships

Synonyms: wake

Antonyms: none provided

Broader terms: wave, moving ridge

12

noun

Meaning 12

the consequences of an event (especially a catastrophic event)

Definition source: Princeton WordNet 3.0

Examples

  • the aftermath of war
  • in the wake of the accident no one knew how many had been injured

Meaning relationships

Synonyms: aftermath, wake

Antonyms: none provided

Broader terms: consequence, effect, outcome, result, event, issue, upshot

13

noun

Meaning 13

the flow of air that is driven backwards by an aircraft propeller

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: slipstream, airstream, race, wash

Antonyms: none provided

Broader terms: flow

History

Etymology

From back + wash.

Across languages

Translations

16 source translations are retained for this English entry.

  • Bulgarian: килватер (kilvater) — backward flow of water from a propeller
  • Finnish: potkurivirta — backward flow of water from a propeller
  • Italian: risacca — backward flow of water from a propeller
  • Italian: riflusso — backward flow of water from a propeller
  • Italian: scia — backward flow of water from a propeller
  • Māori: miti — backward flow of water from a propeller
  • Finnish: seuraamus — aftermath
  • Finnish: jälkivaikutus — aftermath
  • Finnish: jälkitilanne — aftermath
  • Russian: последствие (posledstvije) — aftermath
  • Finnish: purskutus — The saliva, spit or food flowing back into a drink
  • German: Spuckschluck — The saliva, spit or food flowing back into a drink
  • German: Spuckrest — The saliva, spit or food flowing back into a drink
  • German: Uwe — The saliva, spit or food flowing back into a drink
  • Italian: sbavatura — The saliva, spit or food flowing back into a drink
  • Italian: salivazione — The saliva, spit or food flowing back into a drink