adj. /twen"tee fohld', twun"-/; adv. /twen"tee fohld", twun"-/, adj.
1. having twenty sections, aspects, divisions, kinds, etc.
2. being twenty times as large, great, many, etc.
adv.
3. twenty times in amount or degree.
[1600-10; TWENTY + -FOLD]
Useful english dictionary. 2012.