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

That track record helped solidify confidence in Xala’s long-term vision, particularly its emphasis on stewardship over spectacle. —Abby Montanez, Robb Report, 23 Dec. 2025

Forecasts have solidified as Southern California braces for a widespread storm that will bring heavy rain to the region during the Christmas holiday. —Austin Turner, CBS News, 23 Dec. 2025

The win also solidifies another winning season for head coach Mike Tomlin. —Ryan Gaydos, FOXNews.com, 22 Dec. 2025

The Colorado Avalanche solidified their lead atop the Central Division on Sunday, emphatically, building a commanding lead and giving Minnesota Wild fans precious little to cheer about. —Jess Myers, Twin Cities, 22 Dec. 2025

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