De or het efficiency?

The correct Dutch article is:

de efficiency

Meaning (Dutch) het efficiënt zijn, de doelmatigheid

How to use efficiency

the efficiencyde efficiency
this efficiencydeze efficiency
that efficiencydie efficiency
our efficiencyonze efficiency
your efficiencyjouw efficiency
every efficiencyelke efficiency
which efficiency?welke efficiency?
a big efficiency / the big efficiencyeen grote efficiency, de grote efficiency

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).