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 Chiefs also picked up free-agent swing tackle Jaylon Moore to solidify the line. —Blair Kerkhoff, Kansas City Star, 2 Sep. 2025

Charts And Singles Off the Wall helped solidify Jackson’s status as one of the biggest stars in music, and also a certified and reliable hitmaker. —Hugh McIntyre, Forbes.com, 2 Sep. 2025

The district solidified its stance on working with immigration enforcement last year when the Chicago Board of Education passed a resolution stating CPS will not provide assistance to ICE in the enforcement of federal civil immigration law. —Kate Perez, Chicago Tribune, 2 Sep. 2025

This further solidified the connection between the supernova wreckage and the runaway pulsar. —Robert Lea, Space.com, 2 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