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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.

This block party — multigenerational, multivibrational — is in celebration of the sand-colored sanctuary and sculpture park that is “sister dreamer,” a direct expression of its spirit and purpose.

From Los Angeles Times • Apr. 14, 2026

In addition to toothpaste, researchers and the PerioTrap team have developed a gel used after professional dental cleanings to block harmful bacteria, support a healthy microbiome, and maintain gum health.

From Science Daily • Apr. 13, 2026

British naval ships and soldiers will not be used to block Iranian ports, while UK minesweepers and anti-drone capabilities will continue operating in the region.

From BBC • Apr. 12, 2026

Trial lawyers are doing the equivalent of lying down in the street to block her reforms.

From The Wall Street Journal • Apr. 12, 2026

I suck in a calming breath, grateful for his encouragement, and step up on my block.

From "Red Flags and Butterflies" by Sheryl Azzam

Vocabulary lists containing block

Chapter 27: America and World War II

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