harden

verb
hard·​en | \ ˈhär-dᵊn How to pronounce harden (audio) \
hardened; hardening\ ˈhärd-​niŋ How to pronounce harden (audio) , ˈhär-​dᵊn-​iŋ \

Definition of harden

 (Entry 1 of 3)

transitive verb

1 : to make hard or harder
2 : to confirm in disposition, feelings, or action especially : to make callous hardened his heart
3a : inure, toughen harden troops
b : to inure to unfavorable environmental conditions (such as cold) often used with off harden off seedlings before transplanting
4 : to protect from blast, heat, or radiation (as by a thick barrier or placement underground)

intransitive verb

1 : to become hard or harder
2a : to become firm, stable, or settled
b : to assume an appearance of harshness or severity her face hardened at the thought
3 : to become gradually acclimatized to unfavorable conditions often used with off plants hardened off before the first frost

Harden

biographical name (1)
Har·​den | \ ˈhär-dᵊn How to pronounce Harden (audio) \

Definition of Harden (Entry 2 of 3)

Sir Arthur 1865–1940 English chemist

Harden

biographical name (2)

Definition of Harden (Entry 3 of 3)

Maximilian 1861–1927 originally Felix Ernst Witkowski German writer

Synonyms & Antonyms for harden

Synonyms: Verb

Antonyms: Verb

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Examples of harden in a Sentence

Verb The presence of certain substances in the blood can cause the arteries to harden. These additives are designed to harden the steel. substances that can harden the arteries The news has hardened opposition to the government. He had been hardened by his years of military service.
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Recent Examples on the Web: Verb Sending his father away to Walpole (prison) for 20-something years, and how that will harden a person as well. Erin Jensen, USA TODAY, 15 Jan. 2022 The medium-weight bath towels are spun from Turkish cotton, translating to a soft, plush, and absorbent material that won't stiffen or harden over time. Amy Schulman, PEOPLE.com, 6 Jan. 2022 Apple released a series of patches in September and October that mitigate the ForcedEntry attack and harden iMessage against future, similar attacks. Lily Hay Newman, Ars Technica, 18 Dec. 2021 In North Carolina, as Duke Energy slowly works to harden the grid, some are pursuing other means of fostering climate-resilient communities. Washington Post, 24 Oct. 2021 If necessary, place a resealable bag filled with ice over the stain to harden the sap first. Jessica Bennett, Better Homes & Gardens, 16 Dec. 2021 The issue of immigration is dominating political debate in the country five months before presidential elections, as candidates on the right as well as the left harden their positions. New York Times, 2 Dec. 2021 Apple released a series of patches in September and October that mitigate the ForcedEntry attack and harden iMessage against future, similar attacks. Lily Hay Newman, Wired, 15 Dec. 2021 Never use a blow dryer, direct sunlight, or other heat sources to shorten the drying time; this can cause the material to dry out and harden. Jessica Bennett, Better Homes & Gardens, 24 Nov. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'harden.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of harden

Verb

13th century, in the meaning defined at transitive sense 1

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Time Traveler for harden

Time Traveler

The first known use of harden was in the 13th century

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Dictionary Entries Near harden

hard-edged

harden

Harden

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Statistics for harden

Last Updated

17 Jan 2022

Cite this Entry

“Harden.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/harden. Accessed 17 Jan. 2022.

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More Definitions for harden

harden

verb

English Language Learners Definition of harden

: to become hard or firm or to make (something) hard or firm
: to become more definite and strongly felt or to make (something) more definite and strongly felt
: to make (someone) hard : to make (someone) less emotional and less likely to feel sorry for other people

harden

verb
hard·​en | \ ˈhär-dᵊn How to pronounce harden (audio) \
hardened; hardening

Kids Definition of harden

1 : to make or become hard or harder By now the cement has hardened.
2 : to make or become hardy or strong Years of tough work had hardened his muscles.
3 : to make or become stubborn or unfeeling She hardened her heart and refused to forgive him.

More from Merriam-Webster on harden

Nglish: Translation of harden for Spanish Speakers

Britannica English: Translation of harden for Arabic Speakers

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