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 move helps solidify Miami’s defense, as Micael was one of the league’s best defenders in 2024 before joining the Brazilian giants. —Paul Tenorio, New York Times, 7 Jan. 2026

But Larrazábal could solidify control of neither the military nor society. —Michael Albertus, The Atlantic, 7 Jan. 2026

Wunder Train High-Rise Tight Taylor Swift was seen leaving the studio in these exact leggings last year, solidifying them as the ultimate pants for getting things done. —Emma Greene, InStyle, 6 Jan. 2026

Although the rain has solidified the region’s water supply for now, experts cautioned that snowpack remains below average for this point in the year — a critical metric for long-term water storage. —Sacbee.com, 6 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