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Definitions

effective

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




Usage

What are other ways to say effective? The adjective effective is applied to a person or a thing that has the power to, or which actually does, produce an effect: an effective boss, remedy, speech. Effectual is used especially of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. Efficacious suggests the capability of achieving a certain end: an efficacious plan, medicine. Efficient (applied also to persons) implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. 

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.

Not living full-time in New York might also mean they use fewer city services, an effective subsidy for the average resident.

From The Wall Street Journal • Apr. 17, 2026

It follows weeks of rises after the effective closure of the Strait of Hormuz - a key transit route for oil and gas - dramatically pushed up wholesale prices.

From BBC • Apr. 17, 2026

"Patients should speak with their healthcare provider about the safest and most effective options for managing their symptoms."

From Science Daily • Apr. 16, 2026

He added that airlines may have to cancel flights “soon” if supplies continue to be upended by the conflict, which has resulted in the effective closure of the Strait of Hormuz.

From MarketWatch • Apr. 16, 2026

“Redemption” resulted in the withdrawal of federal troops from the South and the effective abandonment of African Americans and all those who had fought for or supported an egalitarian racial order.

From "The New Jim Crow" by Michelle Alexander




Vocabulary lists containing effective