Effective
/ɪˈfɛktɪv/
Definitions
2 meaningsSuccessful in producing a desired or intended result.
/ɪˈfɛktɪv/
Producing the intended or expected result.
The new policy was very effective in reducing crime rates.
💡 Simply: Imagine you try a new way to study, and you understand everything better! That way of studying is *effective* because it works well for you.
👶 For kids: When something works like you want it to, it's effective! Like if you use a toy and it's super fun, it's effective!
More Examples
She gave an effective presentation that captivated the audience.
Regular exercise is an effective way to improve your health.
How It's Used
"The new marketing campaign was highly effective in increasing sales."
"The medication proved to be effective in treating the infection."
In operation; in force.
/ɪˈfɛktɪv/
Operating or operative.
The new rules are effective immediately.
💡 Simply: If a rule or law is *effective*, it means it's officially started and people need to follow it.
👶 For kids: When something starts working, like when your bedtime is effective because it is happening.
More Examples
The change in leadership will be effective next month.
The new security measures were effective in keeping the event safe.
How It's Used
"The law becomes effective on January 1st."
Idioms & expressions
effective immediately
Starting or taking effect without delay.
"The new policy is effective immediately."
most effective
The thing that works the best.
"The most effective way to learn a new language is immersion."
From Middle English effectif, from Old French effectif, from Latin effectivus ('producing an effect'), from effectus, past participle of efficere ('to bring about, accomplish').
The word has been used since the 16th century, initially with the meaning of 'productive of effects'.
Memory tip
Think of 'effect' - the word itself shows it's about getting results!