adverb (r)

• to a high degree or extent; favorably or with much respect(adv.all)

  Example:
  Highly successful.
  He spoke highly of her.
  Does not think highly of his writing.
  

  Synonym:
  extremely
  

  source: wordnet30
• at a high rate or wage(adv.all)

  Example:
  Highly paid workers.
  

  source: wordnet30
• in a high position or level or rank(adv.all)

  Example:
  Details known by only a few highly placed persons.
  

  source: wordnet30
• In a high manner, or to a high degree; very much; as, highly esteemed.(adverb)

  source: webster1913