1. [adv]  by a factor of two; "the price increased twofold last year"
2. [adj]  twice as great or many; "ate a double portion"; "the dose is doubled"; "a twofold increase"
3. [adj]  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

TWOFOLD is a 7 letter word that starts with T.

1. \Two"fold`\, a. [Cf. {Twifold}.]
   Double; duplicate; multiplied by two; as, a twofold nature; a
   twofold sense; a twofold argument.
   
   

2. \Two"fold`\, adv.
   In a double degree; doubly.