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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.

The most effective antipoverty work usually happens when people in local parishes tackle local problems.

From The Wall Street Journal • Jun. 11, 2026

Newer studies found that microfinance is effective at helping existing entrepreneurs expand their businesses.

From The Wall Street Journal • Jun. 11, 2026

Bielli said: "What we want is to make sure that before we advise if pingers are effective that we have enough information collected to do a comparison."

From BBC • Jun. 10, 2026

One of the most effective ways to reduce the risk of hearing damage is to limit exposure to loud noise.

From Science Daily • Jun. 10, 2026

The only effective treatment then was rest, with the hope that the body would fight the infection.

From "Ambushed!" by Gail Jarrow




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