fourfold — English Dictionary

Adjective

1. Four times as great; quadruple.

   Usage

   • not-comparable

2. Comprised of four individual members.

   Usage

   • not-comparable

   Examples

   Most pupils have a fourfold object in studying a language; they wish to be able to read and write, to speak and to understand it.

Adverb

1. By a factor of four.

   Usage

   • not-comparable

   Synonyms

   quadruply

   Examples

   And he shall restore the Lambe fourefold, because he did this thing, and because he had no pittie.

Verb

1. To increase to four times as much; to multiply by four.

Noun

1. An algebraic variety of degree 4.

   Examples

   Our main application is to the classification of Poisson brackets on Fano fourfolds.

Adjective

1. four times as great or many

   Synonyms

   quadruplefour-fold

   Examples

   a fourfold increase in the dosage

2. having four units or components

   Synonyms

   quadruplequadruplicatequadruplexfour-fold

   Examples

   quadruple rhythm has four beats per measure

   quadruplex wire

Adverb

1. by a factor of four

   Synonyms

   four times

   Examples

   the price of gasoline has increased fourfold over the past two years