harden
verb (used with object)
to make hard or harder.
hardens
-
present tense formof harden (3rd person singular).present tense
Used to describe things happening now or regularly.
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.
Lava tubes form when the outer surface of flowing lava cools and hardens while molten rock continues moving beneath it.
From Science Daily ● Oct. 8, 2026
Taken together, the list of woes hardens the image of a chronically broke city whose administration often struggles to reliably provide services for its almost four million people.
From Barron's ● Sep. 15, 2026
To complicate matters, Klee, in 1935, began to suffer from the then‑fatal autoimmune disease scleroderma, which hardens and tightens the skin.
From The Wall Street Journal ● Jul. 8, 2026
Before, Ahmad could tap — meaning to cut incisions in the acacia trees, which exude sap that a few weeks later hardens into nodules of Hashab gum — four orchards in one go.
From Los Angeles Times ● May 31, 2026
Director Van Helsing's face hardens at the sight of my Junior Agent badge.
From "Amari and the Night Brothers" by B.B. Alston
