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

• 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

The Joe Gibbs Racing driver solidified himself as a championship-caliber racer once again. —Joseph Wolkin, Forbes.com, 16 Sep. 2025

Redford's impact wasn't limited to acting—his directorial work on Ordinary People and Quiz Show earned critical acclaim and solidified his reputation as a storyteller with depth and vision. —Hannah Parry amanda Castro, MSNBC Newsweek, 16 Sep. 2025

Additionally, the Reich Citizenship Law stripped Jews of German citizenship, solidifying their exclusion from the nation’s civic life. —Arizona Republic, AZCentral.com, 15 Sep. 2025

The movie itself won two Oscars and solidified the story’s place in pop culture history. —Dave Quinn, PEOPLE, 15 Sep. 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