solidify

verb

so·​lid·​i·​fy sə-ˈli-də-ˌfī 

solidified; solidifying

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

solidification

sə-ˌli-də-fə-ˈkā-shən 

noun

Synonyms of solidify

• freeze
• harden
• stiffen

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.

Recent Examples on the Web

With more than 350,000 attendees per edition and an international audience representing nearly half of its visitors, according to a press release, the festival has solidified itself as one of Marbella’s key cultural, tourist and economic drivers. —Sigal Ratner-Arias, Billboard, 18 Mar. 2026

With Rodríguez being optioned to Sacramento, catcher Daniel Susac has all but solidified his spot on the Opening Day roster. —Justice Delos Santos, Mercury News, 18 Mar. 2026

Police say the victims later identified the suspects in photo lineups, and tips from the public helped solidify the case. —Stepheny Price, FOXNews.com, 18 Mar. 2026

Once the layer is bombarded with UV light and solidifies, the process repeats until the screen is 20 layers thick. —Eric Zeman, PC Magazine, 17 Mar. 2026

Word History

First Known Use

1799, in the meaning defined at transitive sense 1

Rhymes for solidify

• acidify
• alveoli
• areolae
• demystify
• detoxify
• disqualify
• diversify
• electrify
• exemplify
• fasciculi
• identify
• indemnify

Kids Definition

solidify

verb

so·​lid·​i·​fy sə-ˈlid-ə-ˌfī 

solidified; solidifying

: to make or become solid, compact, or hard