Part of speech:
Designating the fourth of identical copies
by a factor of four
Giving passage in four directions
Four times as much in size, strength, number, or amount.
four times as great or many
Relating to or having a carbon atom that is attached to four other carbon atoms in a molecule. Quaternary pentane, for example, contains five carbon atoms of which one is in the center and the other four are each attached to it.
Find another word for fourfold. In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for fourfold, like: quadruplicate, four times, , four-way, four-ply, four times as many, quadruple, quadruples, four-fold, quadruplex and fivefold.