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

With the band’s name made, its next two studio albums solidified its status as Latin-flecked neo-country influencers. —Erik Pedersen, Deadline, 9 Dec. 2025

When the mixture solidified into crystals, neutron diffraction experiments at Oak Ridge National Laboratory’s TOPAZ instrument revealed the distinctive cycloidal, skyrmion-like textures the team hoped to create. —Neetika Walter, Interesting Engineering, 9 Dec. 2025

If approved, the move would solidify Netflix as the dominant streaming platform. —David R. King, Fortune, 8 Dec. 2025

Meanwhile, the Cardinals haven’t solidified their plans on whether Donovan will be moved. —Kansas City Star, 7 Dec. 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