Standard Lemma guide

buffer

adj · name · noun · verb · 31 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: /ˈbʌfə/
  • Received-Pronunciation: [ˈbɐfə(ɹ)]
  • General-American: /ˈbʌfəɹ/
  • General-American: Recorded audio is listed in the source snapshot.
  • Australian: /ˈbafə(ɹ)/
  • Australian: [ˈbäfə(ɹ)]
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -ʌfə(ɹ)
  • CMU ARPABET: B AH1 F ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Comparative form of buff: more buff.

Definition source: English Wiktionary via Wiktextract

Usage: comparative, form-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A surname

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Someone or something that buffs (polishes and makes shiny).

A machine with rotary brushes, passed over a hard floor 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

4

noun

Meaning 4

Someone or something that buffs (polishes and makes shiny).

A machine for polishing shoes and boots.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A boxer.

Definition source: English Wiktionary via Wiktextract

Usage: Ireland, archaic, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Anything used to isolate or minimize the effect of one thing on another.

A solution used to stabilize the pH (acidity) of a liquid, such as by resisting a change in pH when an acid or alkali is added.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

Anything used to isolate or minimize the effect of one thing on another.

Anything used to maintain slack or isolate different objects.

Definition source: English Wiktionary via Wiktextract

Topics: engineering, mechanical-engineering, mechanics, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

Anything used to isolate or minimize the effect of one thing on another.

A device on trains and carriages designed to cushion the impact between them.

Definition source: English Wiktionary via Wiktextract

Topics: rail-transport, railways, transport

Examples

  • 1885, W. S. Gilbert, The Mikado, Act II, in The Mikado, and Other Plays, New York: Modern Library, 1917, p. 42, https://archive.org/details/mikadootherplays00gilb The idiot who, in railway carriages, / Scribbles on window panes, / We only suffer / To ride on a buffer / In Parliamentary trains.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

Anything used to isolate or minimize the effect of one thing on another.

The barrier placed at the end of the track to absorb the impact of a train that fails to stop.

Definition source: English Wiktionary via Wiktextract

Topics: rail-transport, railways, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

Anything used to isolate or minimize the effect of one thing on another.

An isolating circuit, often an amplifier, used to minimize the influence of a driven circuit on the driving circuit.

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

Anything used to isolate or minimize the effect of one thing on another.

A routine or storage medium used to compensate for a difference in rate of flow of data, or time of occurrence of events, when transferring data from one device to another.

Definition source: English Wiktionary via Wiktextract

Topics: communications, electrical-engineering, engineering, natural-sciences, physical-sciences, telecommunications

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

noun

Meaning 12

Anything used to isolate or minimize the effect of one thing on another.

A portion of memory set aside to temporarily store data, often before it is sent to an external device or as it is received from an external device.

Definition source: English Wiktionary via Wiktextract

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

noun

Meaning 13

Anything used to isolate or minimize the effect of one thing on another.

A buffer zone (such as a demilitarized zone) or a buffer state.

Definition source: English Wiktionary via Wiktextract

Qualifier: international relations

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

noun

Meaning 14

Anything used to isolate or minimize the effect of one thing on another.

A reserve of funds set aside for use only when adverse circumstances prevail.

Definition source: English Wiktionary via Wiktextract

Topics: business, finance

Examples

  • I keep a savings buffer of three months' worth of living expenses.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

noun

Meaning 15

Anything used to isolate or minimize the effect of one thing on another.

A gap that isolates or separates two things.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

16

noun

Meaning 16

The chief boatswain's mate.

Definition source: English Wiktionary via Wiktextract

Usage: UK, slang

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

17

noun

Meaning 17

A good-humoured, slow-witted fellow, usually an elderly man.

Definition source: English Wiktionary via Wiktextract

Usage: colloquial

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

18

noun

Meaning 18

A dog.

Definition source: English Wiktionary via Wiktextract

Usage: UK, dated, slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

19

verb

Meaning 19

To use a buffer or buffers; to isolate or minimize the effects of one thing on another.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

20

verb

Meaning 20

To use a buffer or buffers; to isolate or minimize the effects of one thing on another.

To queue up (an input) so that it is performed immediately once it is possible.

Definition source: English Wiktionary via Wiktextract

Topics: video-games

Examples

  • Some games let you buffer jumps—if you hold the jump button mid-air, your character will jump as soon as they touch the ground.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

21

verb

Meaning 21

To store (data) in memory temporarily while it is awaiting processing.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive, transitive

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

22

verb

Meaning 22

To maintain the acidity of a solution near a chosen value by adding an acid or a base.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

23

noun

Meaning 23

an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: buff

Antonyms: none provided

Broader terms: implement

24

noun

Meaning 24

a cushion-like device that reduces shock due to an impact

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: fender

Antonyms: none provided

Broader terms: device

25

noun

Meaning 25

a power tool used to buff surfaces

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: polisher

Antonyms: none provided

Broader terms: power tool

26

noun

Meaning 26

(computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: buffer storage, buffer store

Antonyms: none provided

Broader terms: memory device, storage device

Narrower terms: cache, memory cache, frame buffer, keyboard buffer, print buffer

27

noun

Meaning 27

an inclined metal frame at the front of a locomotive to clear the track

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: fender, cowcatcher, pilot

Antonyms: none provided

Broader terms: framework

28

noun

Meaning 28

a neutral zone between two rival powers that is created in order to diminish the danger of conflict

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: buffer zone

Antonyms: none provided

Broader terms: zone

29

noun

Meaning 29

(chemistry) an ionic compound that resists changes in its pH

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: compound, chemical compound

30

verb

Meaning 30

add a buffer (a solution)

Definition source: Princeton WordNet 3.0

Examples

  • buffered saline solution for the eyes

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: modify

31

verb

Meaning 31

protect from impact

Definition source: Princeton WordNet 3.0

Examples

  • cushion the blow

Meaning relationships

Synonyms: cushion, soften

Antonyms: none provided

Broader terms: modify

History

Etymology

From buff + -er.

Etymology tree Old French buffeder. Middle English buff Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English buffer Agent noun from obsolete verb buff (“make a dull sound when struck”) (mid-16c.), from Old French buffe (“blow”). The “boatswain's mate” sense is said to be popularly explained by the mate being a “buffer”, that is intermediary, between officers and men, but various other explanations have also been proposed.

In reference to buff leather.

Across languages

Translations

110 source translations are retained for this English entry.

  • Finnish: kiillottaja — someone or something that buffs
  • Finnish: kiillotuskone — someone or something that buffs
  • Spanish: escrepa — someone or something that buffs
  • Bulgarian: бу́фер (búfer) — anything used to isolate or to minimise the effects of one thing on another
  • Esperanto: bufro — anything used to isolate or to minimise the effects of one thing on another
  • Finnish: puskuri — anything used to isolate or to minimise the effects of one thing on another
  • French: tampon — anything used to isolate or to minimise the effects of one thing on another
  • German: Puffer — anything used to isolate or to minimise the effects of one thing on another
  • Indonesian: penyangga — anything used to isolate or to minimise the effects of one thing on another
  • Māori: pākai — anything used to isolate or to minimise the effects of one thing on another
  • Māori: tauārai — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: búfer — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: parachoques — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: amortiguador — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: intercesor — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: mediador — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: aislador — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: aislante — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: buffer — anything used to isolate or to minimise the effects of one thing on another
  • Spanish: amortiguamiento — anything used to isolate or to minimise the effects of one thing on another
  • Welsh: byffer — anything used to isolate or to minimise the effects of one thing on another
  • Bulgarian: бу́фер (búfer) — solution to stabilize pH
  • Catalan: amortidor — solution to stabilize pH
  • Catalan: solució amortidora — solution to stabilize pH
  • Danish: puffer — solution to stabilize pH
  • Danish: buffer — solution to stabilize pH
  • Dutch: buffermengsel — solution to stabilize pH
  • Esperanto: bufro — solution to stabilize pH
  • Finnish: puskuriliuos — solution to stabilize pH
  • Finnish: puskuri — solution to stabilize pH
  • French: solution tampon — solution to stabilize pH
  • Greek: ρυθμιστικό διάλυμα (rythmistikó diályma) — solution to stabilize pH
  • Indonesian: bufer — solution to stabilize pH
  • Indonesian: dapar — solution to stabilize pH
  • Italian: soluzione tampone — solution to stabilize pH
  • Macedonian: пуфер (pufer) — solution to stabilize pH
  • Māori: mehanga whakatautika — solution to stabilize pH
  • Occitan: solucion tampon — solution to stabilize pH
  • Polish: bufor — solution to stabilize pH
  • Portuguese: solução tampão — solution to stabilize pH
  • Spanish: tampón — solution to stabilize pH
  • Spanish: solución amortiguadora — solution to stabilize pH
  • Spanish: disolución reguladora — solution to stabilize pH
  • Swedish: buffert — solution to stabilize pH
  • Swedish: buffertlösning — solution to stabilize pH
  • Armenian: թափարգել (tʻapʻargel) — rail transport: barrier that absorbs the impact of a train
  • Bulgarian: бу́фер (búfer) — rail transport: barrier that absorbs the impact of a train
  • Catalan: topall — rail transport: barrier that absorbs the impact of a train
  • Dutch: buffer — rail transport: barrier that absorbs the impact of a train
  • French: tampon — rail transport: barrier that absorbs the impact of a train
  • German: Puffer — rail transport: barrier that absorbs the impact of a train
  • Italian: respingente — rail transport: barrier that absorbs the impact of a train
  • Polish: zderzak — rail transport: barrier that absorbs the impact of a train
  • Romanian: tampon — rail transport: barrier that absorbs the impact of a train
  • Swedish: buffert — rail transport: barrier that absorbs the impact of a train
  • Bulgarian: бу́фер (búfer) — portion of memory in computing
  • Chinese Mandarin: 緩衝器 /缓冲器 (huǎnchōngqì) — portion of memory in computing
  • Chinese Mandarin: 缓冲区 (huǎnchōngqū) — portion of memory in computing
  • Czech: vyrovnávací paměť — portion of memory in computing
  • Czech: buffer — portion of memory in computing
  • Dutch: buffer — portion of memory in computing
  • Esperanto: bufro — portion of memory in computing
  • Estonian: puhver — portion of memory in computing
  • Finnish: puskuri — portion of memory in computing
  • French: tampon — portion of memory in computing
  • French: mémoire tampon — portion of memory in computing
  • German: Puffer — portion of memory in computing
  • German: Pufferspeicher — portion of memory in computing
  • Greek: ενδιάμεση μνήμη (endiámesi mními) — portion of memory in computing
  • Greek: πρόσκαιρη μνήμη (próskairi mními) — portion of memory in computing
  • Hebrew: חוֹצֵץ (hotsets) — portion of memory in computing
  • Icelandic: biðminni — portion of memory in computing
  • Indonesian: dapar — portion of memory in computing
  • Japanese: バッファ (baffa) — portion of memory in computing
  • Japanese: バッファー (baffā) — portion of memory in computing
  • Latin: conditorium intermedium — portion of memory in computing
  • Latin: memoria intermedia — portion of memory in computing
  • Lithuanian: buferis — portion of memory in computing
  • Māori: pūreirei — portion of memory in computing
  • Norwegian Bokmål: buffer — portion of memory in computing
  • Occitan: memòria tampon — portion of memory in computing
  • Persian: بافر (bâfer) — portion of memory in computing
  • Polish: bufor — portion of memory in computing
  • Portuguese: buffer — portion of memory in computing
  • Romanian: memorie tampon — portion of memory in computing
  • Romanian: memorie intermediară — portion of memory in computing
  • Russian: бу́фер (búfer) — portion of memory in computing
  • Serbo-Croatian: međuspremnik — portion of memory in computing
  • Spanish: memoria intermedia — portion of memory in computing
  • Spanish: antememoria — portion of memory in computing
  • Swedish: buffert — portion of memory in computing
  • Swedish: buffertminne — portion of memory in computing
  • Turkish: arabellek — portion of memory in computing
  • Vietnamese: bộ nhớ đệm — portion of memory in computing
  • Vietnamese: vùng nhớ đệm — portion of memory in computing
  • Vietnamese: bộ đệm — portion of memory in computing
  • Dutch: inperken — to isolate, to minimise the impacts of (one thing on another)
  • Finnish: eristää — to isolate, to minimise the impacts of (one thing on another)
  • Finnish: puskuroida — to isolate, to minimise the impacts of (one thing on another)
  • Māori: tauārai — to isolate, to minimise the impacts of (one thing on another)
  • Spanish: amortiguar — to isolate, to minimise the impacts of (one thing on another)
  • Spanish: aislar — to isolate, to minimise the impacts of (one thing on another)
  • Spanish: interceder — to isolate, to minimise the impacts of (one thing on another)
  • Spanish: mediar — to isolate, to minimise the impacts of (one thing on another)
  • Finnish: puskuroida — maintain a given acidity
  • French: tamponner — maintain a given acidity
  • Italian: tamponare — maintain a given acidity
  • Māori: whakatautika — maintain a given acidity
  • Portuguese: tamponar — maintain a given acidity
  • Spanish: tamponar — maintain a given acidity
Real reading context

buffer in complete knowledge articles