twofold

Adjective · Adverb

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

WordNet 3.0

Adjective (2)

having more than one decidedly dissimilar aspects or qualities“a double (or dual) role for an actor”“the office of a clergyman is twofold; public preaching and private influence — R.W.Emerson”“every episode has its double and treble meaning — Frederick Harrison”Synonyms: double dual two-fold treble threefold three-fold
twice as great or many“ate a double portion”“the dose is doubled”“a twofold increase”Synonyms: double doubled two-fold

Adverb (1)

by a factor of two“the price increased twofold last year”Synonyms: two times

Webster's Dictionary (GCIDE)

Twofold \Two"fold`\, a. [Cf. Twifold.] Double; duplicate; multiplied by two; as, a twofold nature; a twofold sense; a twofold argument. [1913 Webster]

Twofold \Two"fold`\, adv. In a double degree; doubly. [1913 Webster]