the world > relative properties > number > specific numbers > four > [noun] > multiplication by four > four times as much (4)
A fourfold amount. †Also spec. in U.S., ‘A quadruple assessment for neglect to make return of taxable estate’.
A fourfold number or amount; a quantity four times as great as another. Also: a set of four things or parts.
A fourfold amount. Obsolete.
= quadruple, n. 2. Frequently in in quadruplate.