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.

To take part in a private military action in a foreign country. / (originally and mainly US, politics) To use obstructionist tactics in a legislative body.

plural of filibuster

Third-person singular simple present indicative form of filibuster

simple past tense and past participle of filibuster

present participle of filibuster

The act of one who filibusters.

plural of filibustering

A person who filibusters.

plural of filibusterer