Adjective fourfold has 2 senses
- quadruple, fourfold - four times as great or many; "a fourfold increase in the dosage"
Antonym: single (indirect, via multiple)
- quadruple, quadruplicate, quadruplex, fourfold - having four units or components; "quadruple rhythm has four beats per measure"; "quadruplex wire"
Antonym: single (indirect, via multiple)
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Adverbial fourfold has 1 sense
- fourfold, four times - by a factor of four; "the price of gasoline has increased fourfold over the past two years"
Derived from adjective fourfold1
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