最終更新日：2024/07/28

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

Having the power to produce a required effect or effects. / Producing a decided or decisive effect. / Efficient, serviceable, or operative, available for useful work. / Actually in effect.

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effective

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元となった辞書の項目

effective

adj

Having the power to produce a required effect or effects. / Producing a decided or decisive effect. / Efficient, serviceable, or operative, available for useful work. / Actually in effect.

The new marketing strategy proved to be highly effective in increasing sales.

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意味（1）

Having the power to produce a required effect or effects.

The pill is an effective method of birth control.

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意味（2）

Producing a decided or decisive effect.

The president delivered an effective speech!

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意味（3）

Efficient, serviceable, or operative, available for useful work.

How long does it take to make a bunch of civilians an effective military force?

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意味（4）

Actually in effect.

The curfew is effective at midnight.

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意味（5）

(geometry, of a cycle or divisor) Having no negative coefficients.

意味（6）

(physics, for any effective theory) approximate; Not describing the fundamental dynamic changes in some system as they happen.

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