- Modern-day engines are so much more efficient.
- Debbie is directly responsible for the efficient running of the office.
- Bicycles are a cheap and efficient form of transport.
- Recent medical discoveries are already pointing the way to more efficient vaccines.
- We could reduce our costs by developing a more efficient distribution network.
Thesaurus: synonyms and related words
adverb uk /ɪˈfɪʃ.ənt.li/ us /ɪˈfɪʃ.ənt.li/