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.
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