B2
effectiveness vs efficiency vs proficiency
The difference
| Word | Meaning | Goes with | Example |
|---|---|---|---|
| effectivenessnoun/ɪˈfek.tɪv.nəs/ | Meaning how well something works or produces the result that was wanted | Goes with effectiveness of | Example Researchers are testing the effectiveness of the new vaccine in older adults. |
| efficiencynoun/ɪˈfɪʃ.ən.si/ | Meaning the ability to do something well without wasting time, money or energy | Goes with improve efficiency | Example The new software has improved efficiency across the whole office. |
| proficiencynoun/prəˈfɪʃ.ən.si/ | Meaning a high level of skill or ability, especially in a language or a job task | Goes with language proficiency | Example Applicants must show proficiency in English and basic accounting software. |
Which word fits?
1 of 8Pick the word for the gap. Its form may change in the sentence.
Energy can lower your electricity bill every month.