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 performance solidified Bueckers’ position as the runaway favorite to win Rookie of the Year in 2025. —Emily Adams, Hartford Courant, 21 Aug. 2025

Alphabet’s Waymo, which operates commercial robotaxis in five major U.S. cities and is testing in 10 more, has solidified its position as the dominant player in that space. —Alan Ohnsman, Forbes.com, 20 Aug. 2025

In Saturday’s preseason game at Detroit, Hilton was given the day off, solidified in his role. —David Furones, Sun Sentinel, 19 Aug. 2025

Maybe schemes and full health can help, but this solidified that the Bengals have a potentially fatal flaw on their hands. —Paul Dehner Jr, New York Times, 19 Aug. 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