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

The large wall-piece demonstrates the range of effects liquid metal can have on a flat surface — in this case, a mesh base structure — as the material changed from its dripping and rippled state before solidifying and becoming glossy. —Adrian Madlener, Curbed, 24 Nov. 2025

His work has been collected, but his place in the canon of art history has never been solidified. —Michael James Rocha, San Diego Union-Tribune, 23 Nov. 2025

The week that began as another opportunity for New England Patriots rookie TreVeyon Henderson to solidify himself as the team's lead back now looks more complicated. —Rowan Fisher-Shotton, MSNBC Newsweek, 21 Nov. 2025

Afterward, the mixture is chilled, allowing the fat to solidify and separate. —Sean Timberlake, Sacbee.com, 21 Nov. 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