Thesaurus.com
Dictionary.com
Showing results for effectiveness. Search instead for effective systems.
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.

Beyond its effectiveness, the material is also designed to be practical for real-world use.

From Science Daily • Apr. 22, 2026

Moderna is also developing an mRNA cancer vaccine through a partnership with Merck, and the companies expect to release data potentially later this year about its effectiveness in melanoma.

From The Wall Street Journal • Apr. 21, 2026

According to media reports, the study used hospital patients’ vaccination status to calculate the success of the season’s vaccine, a method long used to determine flu vaccine effectiveness.

From Los Angeles Times • Apr. 14, 2026

Intense competition is pushing manufacturers to improve effectiveness while slashing costs, sometimes to less than $1,000 per unit, making them "affordable", Myronenko said.

From Barron's • Apr. 9, 2026

He practices the things he has been taught, though it is difficult to gauge the effectiveness of his illusions on his own.

From "The Night Circus" by Erin Morgenstern




Vocabulary lists containing effectiveness