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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 earnings upgrade is partly offset by higher capital expenditure and an elevated 39.1% effective tax rate, the analyst adds.

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

Alessandra Bielli, from the Centre for Environment, Fisheries and Aquaculture Science, has been leading a trial since 2019 exploring whether pingers are an effective long-term deterrent when used closer to shore.

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

Writing 3: Write narratives to develop real or imagined experiences or events using effective technique, descriptive details, and clear event sequences.

From "Music and the Child" by Natalie Sarrazin




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