effective
🇺🇸
/ɪˈfektɪv/
🇬🇧
/ɪˈfektɪv/
adjective
B1
working well and giving the results you want
This medicine is effective at reducing pain.
R
real or actual, even if not official
The new policy has made an effective change in how we work.
R
starting to be used or in effect
The new rules become effective next month and will be effective immediately.
translation
working well and giving the results you want; real or actual, even if not official; starting to be used or in effect