effective
🇺🇸
/ɪˈfektɪv/
🇬🇧
/ɪˈfektɪv/
working well and giving the results you want
This medicine is effective at reducing pain.
この薬は痛みを効果的に軽減します。
real or actual, even if not official
The new policy has made an effective change in how we work.
新しい政策は、私たちの働き方に実質的な変化をもたらしました。
starting to be used or in effect
The new rules become effective next month and will be effective immediately.
新しい規則は来月から発効し、即時有効となります。