B2 adjective
efficient
/ɪˈfɪʃnt/
- Meaning
- working well and quickly without wasting time, money or energy
- Example
- "The most efficient way to learn vocabulary is spaced repetition."
- Similar & related words
- effectiveproductivestreamlinedefficiencyefficientlyeffective
- How to use it
- As an adjective, "efficient" describes a noun — it goes before the noun ("a efficient idea") or after "be/seem/become" ("it seems efficient"). Practice it by describing something real around you right now.
- Common mistake
- 'Efficient' and 'effective' differ: efficient = no waste (a fast process); effective = it works (it gets results).