solidify

American  

[suh-lid-uh-fahy] / səˈlɪd əˌfaɪ /

verb (used with object)

solidified, solidifying

1. to make solid; make into a hard or compact mass; change from a liquid or gaseous to a solid form.

2. to unite firmly or consolidate.

3. to form into crystals; make crystallized.

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verb (used without object)

solidified, solidifying

1. to become solid.

2. to form into crystals; become crystallized.

solidify British  

/ səˈlɪdɪˌfaɪ /

verb

1. to make or become solid or hard

2. to make or become strong, united, determined, etc

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Other Word Forms

• nonsolidified adjective
• nonsolidifying adjective
• oversolidify verb (used with object)
• resolidify verb
• solidifiability noun
• solidifiable adjective
• solidifiableness noun
• solidification noun
• solidifier noun
• unsolidified adjective

Etymology

Origin of solidify

From the French word solidifier, dating back to 1790–1800. See solid, -ify

Example Sentences

Their findings, presented at a major visualization science conference, solidify Schrödinger's framework by showing that these core color qualities arise from the internal structure of the color system itself.

From Science Daily • Feb. 23, 2026

After the fatal shooting of Alex Pretti in Minneapolis intensified criticism of Noem, she and Lewandowski moved quickly to solidify their relationship with Trump.

From The Wall Street Journal • Feb. 13, 2026

Harabedian hopes the new guidelines could solidify the state’s long-standing policy to conduct comprehensive, post-fire soil testing.

From Los Angeles Times • Jan. 28, 2026

If she’s in the midst of cognitive decline, but not fully out of it, there’s still time for her to solidify a legal plan.

From MarketWatch • Jan. 26, 2026

A fellow had to get it down his gullet quickly before it began to solidify, or he would gag on it.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

Related Words

• cement
• crystallize
• stiffen
• strengthen