Thesaurus.com
Dictionary.com
Definitions

hardening

[hahr-dn-ing] / ˈhɑr dn ɪŋ /
NOUN
thickening
Synonyms


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.

A 2018 server breach caused by a third-party data center vulnerability prompted NordVPN to accelerate its security hardening and audit schedule.

From Salon • Mar. 27, 2026

For the architect, who has spent much of his 45-year career designing for luxury, hardening a home against wildfire has brought a new kind of luxury to his homes: peace of mind.

From Los Angeles Times • Mar. 2, 2026

Satellite imagery suggests that Iran has been hardening entrances to its nuclear sites in case of attack.

From The Wall Street Journal • Feb. 27, 2026

The RSF set up a parallel government last year, hardening the de facto division of the country.

From BBC • Feb. 24, 2026

He elaborated without encouragement, citing the advantages of Devon’s physical hardening program and of a high school diploma when he did in good time reach basic training.

From "A Separate Peace" by John Knowles