English to English

adverb (r)

• with efficiency; in an efficient manner

  dengan efisiensi; dalam satu cara efisien

  Example:
  He functions efficiently.
  

  Synonym:
  expeditiously
  Antonym:
  inefficiently
  

  source: wordnet30
• With effect; effectively.

  dengan efek; secara efektif.

  source: webster1913