blockade

1 of 2

verb

block·​ade blä-ˈkād How to pronounce blockade (audio)
blockaded; blockading

transitive verb

1
: to subject to a blockade
2
blockader noun

blockade

2 of 2

noun

1
: the isolation by a warring nation of an enemy area (such as a harbor) by troops or warships to prevent passage of persons or supplies
broadly : a restrictive measure designed to obstruct the commerce and communications of an unfriendly nation
2
: something that blocks
3
: interruption of normal physiological function (such as transmission of nerve impulses) of a cellular receptor, tissue, or organ
also : inhibition of a physiologically active substance (such as a hormone)

Examples of blockade in a Sentence

Verb They blockaded the country's ports. the militant protestors blockaded the whole area around city hall Noun it was the blockade of all the enemy's major ports that finally won the war
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
Small fragments of volcanic debris probably fell like rain through the opening during the first phases of the eruption, causing the four people inside the home to rush to the bedroom and blockade it with a bed to protect themselves. Ashley Strickland, CNN Money, 17 May 2025 There have also been disputes between the U.S., Israel and Arab nations over how to administer humanitarian aid blockaded by Israel to Palestinians in Gaza. Benjamin Siegel, ABC News, 12 May 2025
Noun
Once in Rafah, the goal was to set up a camp and work to break the Israeli blockade of Gaza, provide humanitarian aid to the strip and protest against Israel's actions in the territory. Brendan Cole, MSNBC Newsweek, 14 June 2025 Even if local officials ask for support, the Guard would be called to help with traffic control, escorting people through barricades, setting up blockades and making deliveries far from where local police are interacting with crowds. Sarah D. Wire, USA Today, 14 June 2025 See All Example Sentences for blockade

Word History

Etymology

Verb

derivative of blockade entry 2

Noun

block entry 2 + -ade, after German (17th century) Blocquade, Bloquade, Bloquada & Dutch (17th century) Blocquade, Bloquade

Note: The German and Dutch words, which are common in accounts of contemporary events in Europe following the siege and sack of Magdeburg in 1631, are of uncertain origin. They appear to have no Romance antecedents. According to R. J. Brunt, The Influence of the French Language on the German Vocabulary: 1649-1735 (De Gruyter, 2013) "…Ger[man] Blockade probably derives from Ital[ian] bloccato, the past part[iciple] of the verb bloccare 'stringere con il blocco, privare di refornimenti" (p. 160). It seems much more likely however, as Brunt suggests in the same paragraph, that the word was formed from German bloquiren (present-day blockieren), attested earlier and probably borrowed from French blocquer (though in this sense the word is attested only slightly earlier). The suffix -ade/-ada is a distinct borrowing from Romance sources. The Dutch word may have been borrowed from German, or independently formed from blockeren "to enclose" (present-day blokkeren "to obstruct"), also borrowed from French.

First Known Use

Verb

1684, in the meaning defined at sense 1

Noun

1659, in the meaning defined at sense 1

Time Traveler
The first known use of blockade was in 1659

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Cite this Entry

“Blockade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blockade. Accessed 20 Jun. 2025.

Kids Definition

blockade

noun
block·​ade
blä-ˈkād
: the cutting off of an area by means of troops or warships to stop the coming in or going out of people or supplies
blockade verb
blockader noun

Medical Definition

blockade

1 of 2 noun
block·​ade blä-ˈkād How to pronounce blockade (audio)
1
a
: interruption of normal physiological function (as transmission of nerve impulses) of a cellular receptor, tissue, or organ
b
: inhibition of a physiologically active substance (as a hormone)
2
: the process of reducing the phagocytic capabilities of the mononuclear phagocyte system by loading it with harmless material (as India ink or lampblack) which engages its cells in phagocytosis and prevents them from reacting to new antigenic material compare blocking antibody

blockade

2 of 2 transitive verb
blockaded; blockading
: to subject to blockade

More from Merriam-Webster on blockade

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