1
a
: concrete
b
: a powder of alumina, silica, lime, iron oxide, and magnesium oxide burned together in a kiln and finely pulverized and used as an ingredient of mortar and concrete
also
: any mixture used for a similar purpose
2
: a binding element or agency: such as
a
: a substance to make objects adhere to each other
b
: something serving to unite firmly
justice is the cement that holds a political community together—
R. M. Hutchins
R. M. Hutchins3
: cementum
4
: a plastic composition made especially of zinc or silica for filling dental cavities
5
: the fine-grained groundmass or glass of a porphyry
cemented; cementing; cements
1
: to unite or make firm by or as if by cement
Pebbles were cemented together by clay.
has cemented his role as a leader on the team—T. W. Smith
T. W. Smith2
: to overlay with concrete
cemented the cellar floor
: to become cemented
cementer
noun
Examples of cement in a Sentence
Noun
There is a layer of cement under the bricks.
what kind of cement works best on glass and pottery?
Verb
A win would cement her reputation as a strong competitor.
Recent Examples on the Web
Jacqueline Charles, Miami Herald, 16 July 2025
Combining teak, cement, and wicker, the different layers of texture create a unique setting to enjoy elaborate dinner parties or casual family meals in style.
—Julia Harrison, Architectural Digest, 16 July 2025
Marc Berman, Forbes.com, 22 July 2025
In summer 2024, Tyla cemented her superstar status with high-profile performances at the Paris Olympics and Victoria’s Secret Fashion Show, and wins at the VMAs, BET Awards, Billboard Music Awards and more.
—William Earl, Variety, 22 July 2025
See All Example Sentences for cement
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Noun
Since its inauguration the southern port has received several ships including a vessel delivering cement from Panama and another with rice from Cap-Haïtien in the north.
—Jacqueline Charles, Miami Herald, 16 July 2025
Combining teak, cement, and wicker, the different layers of texture create a unique setting to enjoy elaborate dinner parties or casual family meals in style.
—Julia Harrison, Architectural Digest, 16 July 2025
Verb
With over 10,000 unique figures covering a vast range of genres - from TV and film to video games, anime, comics, sports, and music - Funko has cemented itself as a cornerstone of modern fandom.
—Marc Berman, Forbes.com, 22 July 2025
In summer 2024, Tyla cemented her superstar status with high-profile performances at the Paris Olympics and Victoria’s Secret Fashion Show, and wins at the VMAs, BET Awards, Billboard Music Awards and more.
—William Earl, Variety, 22 July 2025
See All Example Sentences for cement
Cite this Entry
“Cement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cement. Accessed 29 Jul. 2025.
Copy CitationKids Definition
cement
1 of 2 noun
ce·ment
si-ˈment 
cement
2 of 2 verb1
: to unite by or as if by cement
cemented their friendship
2
: to cover with concrete
cementer
noun
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