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 opening solidified Seoul’s status as a major global city and established a new benchmark for luxury hospitality. — Condé Nast, Condé Nast Traveler, 22 Sep. 2026

Zahnd, first elected in 2002, had a career defined by high-profile cases and solidified Platte County’s tough-on-crime reputation. — Kacen Bayless, Kansas City Star, 22 Sep. 2026

Detecting small temperature changes could give operators an early warning that coolant is beginning to solidify. — Georgina Jedikovska, Interesting Engineering, 22 Sep. 2026

Harris has a strained relationship with the party's progressive wing, which includes El-Sayed, and El-Sayed is eager to solidify establishment support during his campaign against Republican nominee Mike Rogers, a former congressman. — ABC News, 21 Sep. 2026

Word History

First Known Use

1799, in the meaning defined at transitive sense 1

Rhymes for solidify

• acidify
• alveoli
• antinomy
• areolae
• demystify
• detoxify
• disqualify
• diversify
• electrify
• exemplify
• fasciculi
• identify

Kids Definition

solidify

verb

so·​lid·​i·​fy sə-ˈlid-ə-ˌfī 

solidified; solidifying

: to make or become solid, compact, or hard