so·​lid·​i·​fy | \ sə-ˈli-də-ˌfī How to pronounce solidify (audio) \
solidified; solidifying

Definition of solidify

transitive verb

1 : to make solid, compact, or hard
2 : to make secure, substantial, or firmly fixed factors that solidify public opinion

intransitive verb

: to become solid, compact, or hard

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Other Words from solidify

solidification \ sə-​ˌli-​də-​fə-​ˈkā-​shən How to pronounce solidification (audio) \ noun

Synonyms & Antonyms for solidify


concrete, congeal, firm (up), freeze, harden, indurate, set


liquefy (also liquify), soften

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Examples of solidify in a Sentence

Work is under way to solidify the concrete that supports the building. Hot wax solidifies as it cools. Recent findings helped to solidify our position. The international community is working to solidify its alliances.
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Recent Examples on the Web

Another, even better name is USS Midway, the most influential sea battle of the 20th century, and the battle that solidified the aircraft carrier as the dominant seapower platform of the age. Kyle Mizokami, Popular Mechanics, "The U.S. Navy Is Buying Two Carriers at Once for a Big Discount," 4 Feb. 2019 Another aims to devise a liquid bandage that solidifies upon application. John Donvan, WSJ, "‘The Class’ Review: Science-Fair Confidential," 16 Dec. 2018 At the age of 37, the mother of three, and queen of millions, Bey creates and trendsets in a way that solidified her place as one of the music industry’s most unstoppable forces. Phillip Henry, Teen Vogue, "Five Years Later, Beyoncé's Surprise Album Is Still One of the Most Important Moments in Music," 13 Dec. 2018 One thing that could solidify the trend is if automakers perform more specific resurrections of classic cars and styles. Sean O'kane, The Verge, "Automakers are tapping nostalgia to promote electric cars — and it’s working," 25 Aug. 2018 In 1992, while Prince Charles was still married to his first wife, Princess Diana, the press released private tapes of an intimate phone call between the Prince of Wales and Camilla — an exchange that solidified that the two were having an affair. Kayla Keegan, Good Housekeeping, "Prince Charles and Camilla’s Wedding Involved Way More Drama Than Most People Realize," 18 July 2018 The printed part is heated in a process called sintering that solidifies the metal powder while dissolving layers of removable material. Hiawatha Bray,, "3D printing companies clash in federal court," 13 July 2018 President Donald Trump is poised to continue his remake of the U.S. Supreme Court, with a nomination to be announced Monday night that could solidify conservative jurisprudence for years. Jennifer Jacobs And Mark Niquette, Houston Chronicle, "Trump making Supreme Court pick to cement conservative majority," 9 July 2018 That led to an international diplomatic skirmish that solidified Italy’s hard line on immigration and eventually resulted in the ship traveling to Spain. Gaia Pianigiani, New York Times, "Malta Cracks Down on a Humanitarian Ship That Carried Migrants," 2 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'solidify.' 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 solidify

1799, in the meaning defined at transitive sense 1

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Statistics for solidify

Last Updated

15 Apr 2019

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Time Traveler for solidify

The first known use of solidify was in 1799

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More Definitions for solidify



English Language Learners Definition of solidify

: to make (something) solid or hard or to become solid or hard
: to make (a plan, project, etc.) stronger and more certain or to become stronger and more certain


so·​lid·​i·​fy | \ sə-ˈli-də-ˌfī How to pronounce solidify (audio) \
solidified; solidifying

Kids Definition of solidify

: to make or become solid The melted wax solidified as it cooled.

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More from Merriam-Webster on solidify

Thesaurus: All synonyms and antonyms for solidify

Spanish Central: Translation of solidify

Nglish: Translation of solidify for Spanish Speakers

Britannica English: Translation of solidify for Arabic Speakers

Comments on solidify

What made you want to look up solidify? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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