Definitions

1. adverb

in two parts or in a twofold manner

“The treaty was signed twinfold, with both countries agreeing to the terms.”

2. adjective

twofold; consisting of two parts

“The twinfold nature of the personality is what makes the character so interesting.”

3. noun

a twofold or two-part thing

“The twinfold of his personality was a mystery to those who knew him.”