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

How each block froze depended heavily on overnight temperatures and how quickly the water solidified. —Jordan Greene, PEOPLE, 14 Jan. 2026

The startup doesn't have its own autonomous driving system but plans to seek partners to provide that service once the project solidifies. —New Atlas, 14 Jan. 2026

The team’s first-round selection has been solidified as the 19th overall pick in April’s draft. —Mike Kaye january 13, Charlotte Observer, 13 Jan. 2026

Raskin’s comments come as Dallas seeks to solidify its role in North Texas’ competitive professional sports market. —Everton Bailey Jr, Dallas Morning News, 13 Jan. 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