Standard Lemma guide

filibuster

noun · verb · 8 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: /ˈfɪlɪbʌstə(ɹ)/
  • General-American: /ˈfɪləˌbəstər/
  • General-American: /ˈfɪləbʌstɚ/
  • General-American: Recorded audio is listed in the source snapshot.
  • Australia: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: F IH1 L AH0 B AH2 S T ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A mercenary soldier; a freebooter; specifically, a mercenary who travelled illegally in an organized group from the United States to a country in Central America or the Spanish West Indies in the mid-19th century seeking economic and political benefits through armed force.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: adventurer, bravo, condottiere, filibuster, freebooter, freelance, free companion, hired gun, hireling, hit man, merc, mercenary, private military contractor, sellsword, soldier of fortune

Antonyms: none provided

2

noun

Meaning 2

A tactic (such as giving long, often irrelevant speeches) employed to delay the proceedings of, or the making of a decision by, a legislative body, particularly the United States Senate.

Definition source: English Wiktionary via Wiktextract

Usage: US

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: cloture

3

noun

Meaning 3

A member of a legislative body causing such an obstruction.

Definition source: English Wiktionary via Wiktextract

Usage: US

Topics: government, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: filibusterer

Antonyms: none provided

4

verb

Meaning 4

To take part in a private military action in a foreign country.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To use obstructionist tactics in a legislative body.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

(law) a tactic for delaying or obstructing legislation by making long speeches

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: delay, holdup

7

noun

Meaning 7

a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: filibusterer

Antonyms: none provided

Broader terms: delayer, legislator

8

verb

Meaning 8

obstruct deliberately by delaying

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: obstruct, blockade, block, hinder, stymie, stymy, embarrass

History

Etymology

Borrowed from Spanish filibustero (“pirate”), from French flibustier, ultimately from Dutch vrijbuiter (“freebooter”), from vrij (“free”) + buit (“booty”) + -er (“agent”). The alteration in the first syllable in French is due to the word's being somewhat conflated with vlieboot (“light, flat-bottomed cargo vessel with two or three masts”) when it was borrowed into French or another language from Dutch. The word is cognate and analogous to English freebooter.

Across languages

Translations

57 source translations are retained for this English entry.

  • Bulgarian: пират (pirat) — freebooter
  • Catalan: filibuster — freebooter
  • Danish: fribytter — freebooter
  • Esperanto: flibustro — freebooter
  • Finnish: palkkasoturi — freebooter
  • Finnish: rosvo — freebooter
  • French: flibustier — freebooter
  • German: Freibeuter — freebooter
  • Greek: κουρσάρος (koursáros) — freebooter
  • Greek: πειρατής (peiratís) — freebooter
  • Hungarian: kalóz — freebooter
  • Hungarian: martalóc — freebooter
  • Hungarian: fosztogató — freebooter
  • Italian: filibustiere — freebooter
  • Norwegian: fribytter — freebooter
  • Portuguese: flibusteiro — freebooter
  • Russian: флибустье́р (flibustʹjér) — freebooter
  • Russian: пира́т (pirát) — freebooter
  • Russian: наёмник (najómnik) — freebooter
  • Spanish: filibustero — freebooter
  • Catalan: filibusterisme — long speech given in order to delay proceedings or the making of a decision
  • Chinese Cantonese: 拉布 (laai1 bou3) — long speech given in order to delay proceedings or the making of a decision
  • Chinese Mandarin: 冗長辯論 /冗长辩论 (rǒngcháng biànlùn) — long speech given in order to delay proceedings or the making of a decision
  • Chinese Mandarin: 費力把事拖 /费力把事拖 (fèilìbǎshìtuō) — long speech given in order to delay proceedings or the making of a decision
  • Chinese Mandarin: 拉布 (lābù) — long speech given in order to delay proceedings or the making of a decision
  • Danish: filibuster — long speech given in order to delay proceedings or the making of a decision
  • Finnish: jarrutus — long speech given in order to delay proceedings or the making of a decision
  • Finnish: jarrutuspuhe — long speech given in order to delay proceedings or the making of a decision
  • French: obstruction parlementaire — long speech given in order to delay proceedings or the making of a decision
  • German: Dauerrede — long speech given in order to delay proceedings or the making of a decision
  • German: Ermüdungsrede — long speech given in order to delay proceedings or the making of a decision
  • German: Filibuster — long speech given in order to delay proceedings or the making of a decision
  • Greek: κωλυσιεργία (kolysiergía) — long speech given in order to delay proceedings or the making of a decision
  • Hungarian: obstrukció — long speech given in order to delay proceedings or the making of a decision
  • Icelandic: málþóf — long speech given in order to delay proceedings or the making of a decision
  • Italian: ostruzionismo parlamentare — long speech given in order to delay proceedings or the making of a decision
  • Japanese: フィリバスター (firibasutā) — long speech given in order to delay proceedings or the making of a decision
  • Japanese: 議事妨害 (giji bōgai) — long speech given in order to delay proceedings or the making of a decision
  • Korean: 의사 진행 방해 (uisa jinhaeng banghae) — long speech given in order to delay proceedings or the making of a decision
  • Korean: 필리버스터 (pillibeoseuteo) — long speech given in order to delay proceedings or the making of a decision
  • Norwegian: filibuster — long speech given in order to delay proceedings or the making of a decision
  • Yiddish: אָבסטרוקציע (obstruktsye) — long speech given in order to delay proceedings or the making of a decision
  • Catalan: filibuster — member of a legislative body causing such obstruction
  • Finnish: jarruttaja — member of a legislative body causing such obstruction
  • German: Dauerredner — member of a legislative body causing such obstruction
  • Greek: κωλυσιεργός (kolysiergós) — member of a legislative body causing such obstruction
  • Hungarian: obstrukcionista — member of a legislative body causing such obstruction
  • Finnish: jarruttaa — to use obstructionist tactics in a legislative body
  • German: filibustern — to use obstructionist tactics in a legislative body
  • German: Obstruktion betreiben — to use obstructionist tactics in a legislative body
  • German: verschleppen — to use obstructionist tactics in a legislative body
  • German: eine Verschleppungstaktik betreiben — to use obstructionist tactics in a legislative body
  • German: eine Hinhaltetaktik betreiben — to use obstructionist tactics in a legislative body
  • German: eine Verzögerungstaktik betreiben — to use obstructionist tactics in a legislative body
  • Greek: κωλυσιεργώ (kolysiergó) — to use obstructionist tactics in a legislative body
  • Hungarian: obstruál — to use obstructionist tactics in a legislative body
  • Yiddish: אָבסטרויִרן (obstruirn) — to use obstructionist tactics in a legislative body
Real reading context

filibuster in complete knowledge articles