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Definitions

effectiveness

[ih-fek-tiv-nis, ee-fek‐] / ɪˈfɛk tɪv nɪs, iˈfɛk‐ /




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.

Yet Novo Nordisk plans to avoid the mistakes that hurt it during the last round, and will seek to hold on to its early lead by emphasizing the effectiveness of its pill.

From The Wall Street Journal • Apr. 1, 2026

Despite doubts about their effectiveness, Minicircle’s gene therapy and others like it are available at an increasing number of clinics across the world.

From Slate • Mar. 30, 2026

Meta’s data centers, on the other hand, are all for itself: for its own research, for raising engagement and the effectiveness of ad-targeting, and ultimately for serving up new AI experiences to users.

From Barron's • Mar. 27, 2026

Gaining a better understanding of how these drugs are stored and distributed inside cells could lead to more personalized treatment strategies, improving effectiveness while reducing resistance and relapse.

From Science Daily • Mar. 27, 2026

His death was a severe setback to the government, and the effectiveness and aggressiveness of the Crown team diminished from that point on.

From "Long Walk to Freedom" by Nelson Mandela