Entry 1 sense Webster, 1913 Tenfold /tĕn'-fōldˌ/ · Ten·fold · IPA /ˈtɛnfoʊld/ 01 a. & adv. In tens; consisting of ten in one; ten times repeated. 1. In tens; consisting of ten in one; ten times repeated. “The grisly Terror . . . grew tenfold More dreadful and deform.” — Milton.