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

• concrete
• congeal
• firm (up)
• freeze
• harden
• indurate
• set

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

Nathan Saliba is solidifying his Canada role The early story of Canada’s Gold Cup is how quickly some of their up-and-comers are rising. —Joshua Kloke, New York Times, 22 June 2025

Coastal’s Caden Bodine, a switch-hitting catcher with elite contact skills and advanced pitch framing, is trending into the first round and could solidify that status with a strong showing. —Giovanni Malloy, Forbes.com, 21 June 2025

The infatuations of late elementary school solidified into something different, something more intense. —Manvir Singh, New Yorker, 21 June 2025

As for the series' final scene, it was solidified years ago by the co-creators. —Samantha Stutsman, People.com, 21 June 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