say it: SIK-sfohld
sixfold is an adjective and adverb meaning "having six units or components". It carries 2 recorded senses.
by a factor of six
“the population of this town increased sixfold when gold was found in the surrounding hills”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sixfold come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.