JLPT N2 Upper Intermediate
有効
Officially valid or functionally effective
Readings
Other forms
有効な na-adjective form
有効に adverbial form
1 Noun, Na-adjective
Valid
Refers to the status of a document, right, or contract being officially usable, legally binding, or unexpired.
Example
パスポート の 有効期限 が もうすぐ 切れ ます 。
My passport's expiration date is coming up soon.
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2 Noun, Na-adjective
Effective
Describes a method, resource, or treatment that successfully produces a result or possesses practical utility.
Usage notes & examples
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