I. WORDS EXPRESSING ABSTRACT RELATIONS
V. NUMBER
2. DETERMINATE NUMBER
Duplication.
[Nouns] duplication; doubling; gemination, ingemination; reduplication; iteration (repetition) [more]; renewal.
[Verbs] double, redouble, duplicate, reduplicate; geminate; repeat [more]; renew [more].
[Adjectives] double; doubled; bicipital, bicephalous, bidental, bilabiate, bivalve, bivalvular, bifold, biform, bilateral; bifarious, bifacial; twofold, two-sided; disomatous; duplex; double-faced, double-headed; twin, duplicate, ingeminate; second.
[Adverbs] twice, once more; over again (repeatedly) [more]; as much again, twofold.
secondly, in the second place, again.