Definitions

test case

NOUN

representative occurrence

Synonyms

STRONGEST

precedent

WEAK

acid test crucial test experiment first case first occurrence

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Using melanoma drug resistance as a test case, the researchers showed that targeting these common control points could help overcome resistance across multiple genetic causes.

From Science Daily • May 21, 2026

That complication is what makes them the perfect test case for AI “doctors” trained to read breast imagery.

From The Wall Street Journal • May 4, 2026

Her trial was a test case in multi-district litigation against major social media companies.

From Salon • Apr. 16, 2026

Maine’s has been on the books since 1989, and it is a perfect test case for this long-overlooked path to accountability.

From Slate • Apr. 15, 2026

The perfect test case, the perfect way to set precedent—not with someone who was malicious, not with a societal outlier.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel