Dictionary.com
Thesaurus.com
Synonyms

blockade

American  
[blo-keyd] / blɒˈkeɪd /

noun

  1. the isolating, closing off, or surrounding of a place, as a port, harbor, or city, by hostile ships or troops to prevent entrance or exit.

  2. any obstruction of passage or progress.

    We had difficulty in getting through the blockade of bodyguards.

  3. Pathology. interruption or inhibition of a normal physiological signal, as a nerve impulse or a heart muscle–contraction impulse.


verb (used with object)

blockaded, blockading
  1. to subject to a blockade.

blockade British  
/ blɒˈkeɪd /

noun

  1. military the interdiction of a nation's sea lines of communications, esp of an individual port by the use of sea power

  2. something that prevents access or progress

  3. med the inhibition of the effect of a hormone or a drug, a transport system, or the action of a nerve by a drug

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to impose a blockade on

  2. to obstruct the way to

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See siege.

Other Word Forms

Etymology

Origin of blockade

1670–80; block (in the sense “to create obstacles”) + -ade 1

Explanation

A blockade is an obstacle that stands between you and something you're trying to reach. After a robbery, police might set up a blockade around the neighborhood to catch the thief. Anything that impedes or halts progress is a blockade. If you join the military, you might find yourself building a blockade to confine your enemies and isolate them from the outside world. If you think of the root of this word, block, then you've pretty much got the meaning right there. If you don't want your little sister to disturb the house of cards you're building in my room, you can take lots of pillows and make a fort to use as a blockade to keep her from wandering in and knocking everything over.

Keep Reading on Vocabulary.com

Vocabulary lists containing blockade

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Berlin Blockade, a Soviet-backed coup in Czechoslovakia, Mao’s victory in China and North Korea’s invasion of South Korea transformed Truman into a reluctant hawk.

From The Wall Street Journal • Jan. 16, 2026

Climate activists approach the task at hand from myriad perspectives: Blockade a senator’s office door.

From Los Angeles Times • Sep. 9, 2024

Blockade survivor Irina Zimneva, 85, told The Associated Press that she’s still haunted by memories of the tiny food rations distributed to residents during the deadly winter of 1941-1942.

From Seattle Times • Jan. 27, 2024

In 1807, Napoléon implemented his Continental System, or Continental Blockade, that required that all European ports be closed to English shipping.

From Textbooks • Dec. 14, 2022

We presented The Blockade of Boston, Major-General Burgoyne’s farce upon rebel hypocrisy, as one of the most celebrated events of our hivernal concert series.

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume II: The Kingdom on the Waves" by M.T. Anderson