- present participle of harden.
hardening
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.
His remarks came after Washington and Tehran had issued demands for compensation over the five-month war, hardening their positions.
From Barron's ● Aug. 12, 2026
The Qatari aircraft lacks several features of older Air Force One jets, including the ability to refuel midair and nuclear hardening.
From The Wall Street Journal ● Aug. 2, 2026
It marks a wider trend of governments hardening their stance on undocumented migration, with many, including the UK and Italy, adopting measures aimed at deterring it.
From BBC ● Jul. 4, 2026
UV light is used for air purification, curing resins in 3D printing, hardening gels in dental fillings, and even applications such as nail treatments.
From Science Daily ● Jun. 26, 2026
It had been hours, now, since all this began, the first twinge, then the rhythmic, hardening pain, and later, the buckling on of the mask.
From "Son" by Lois Lowry
