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Definitions

block

[blok] / blɒk /
NOUN
mass of material
Synonyms
STRONGEST
bar brick chunk piece section slab square
STRONG
cake cube hunk ingot loaf lump oblong segment slice solid
Antonyms
STRONGEST
whole
WEAK
opening
NOUN
obstruction
Synonyms
STRONGEST
bar barrier chunk roadblock wall
STRONG
blockage clog hang-up hindrance impediment jam mass obstacle obstruction snag stop stoppage
WEAK
blank wall
Antonyms
STRONG
advantage aid assistance beginning clearance continuation go help promotion start support
WEAK
opening
VERB
obstruct
Synonyms
STRONGEST
arrest bar blockade clog close close off cut off deter halt hinder hold up impede intercept prevent stall stop thwart
STRONG
barricade brake catch charge check choke congest dam dead-end fill occlude plug stonewall stopper stymie tackle
WEAK
block out close out hang up interfere with shut off shut out stop up take out of play
Antonyms
STRONGEST
advance aid allow assist begin continue encourage facilitate forward further give help let go open permit promote push release start support unstop
STRONG
free liberate unblock
WEAK
let up

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.

With that avenue now blocked, as was always foreseeable, there’s no more dodging if Iran continues to block the Strait.

From The Wall Street Journal • Apr. 7, 2026

If a robot is asked to stack blocks into a tower, it must first analyze the scene, identify each block, and determine how to place them correctly.

From Science Daily • Apr. 5, 2026

After the block, Betts screamed loud enough to be heard from the desert to Westwood.

From Los Angeles Times • Apr. 4, 2026

By buying Globalstar, Farrar said, SpaceX would block a chance for Amazon to “broaden its appeal” and match Starlink’s direct-to-direct capability.

From MarketWatch • Apr. 2, 2026

I ignored him, I closed my eyes, trying to block out all the din around me and focusing only on the voices in my headset, where the Frenchman was keeping his agonized wait.

From "The Brightwood Code" by Monica Hesse