Entry 1 sense Webster, 1913 Forestry /fŏrʹ-ĭst-rē/ · For·est·ry · IPA /ˈfɒɹ.ɪst.ɹi/ 01 n. The art of forming or of cultivating forests; the management of growing timber. 1. The art of forming or of cultivating forests; the management of growing timber.