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WordNet (r) 3.0 (2006) (WordNet)

threefold
adv 1: by a factor of three; "our rent increased threefold in
the past five years" [synonym: {threefold}, {three times}]
adj 1: three times as great or many; "a claim for treble (or
triple) damages"; "a threefold increase" [synonym: {treble},
{threefold}, {three-fold}, {triple}]
2: having more than one decidedly dissimilar aspects or
qualities; "a double (or dual) role for an actor"; "the
office of a clergyman is twofold; public preaching and
private influence"- R.W.Emerson; "every episode has its
double and treble meaning"-Frederick Harrison [synonym: {double},
{dual}, {twofold}, {two-fold}, {treble}, {threefold}, {three-
fold}]