twofold

Adjective

• twice as great or many
  • ate a double portion
    
  • the dose is doubled
    
  • a twofold increase
    

• having more than one decidedly dissimilar aspects or qualities; public preaching and private influence"- R.W.Emerson
  • a double (or dual) role for an actor
    
  • the office of a clergyman is twofold
    
  • every episode has its double and treble meaning-Frederick Harrison
    

Adverb

• by a factor of two
  • the price increased twofold last year
    

Related words

• Synonyms: 
  double , doubled , two-fold , dual , treble , threefold , three-fold , two times