Entry 3 senses · 2 variants Webster, 1913 Treen /trēn/ · IPA /tɹiːn/ a. pl. 01 a. Made of wood; wooden. 1. Made of wood; wooden.[Obs.] 2. Relating to, or drawn from, trees.[Obs.] “Treen liquors, especially that of the date.” — Evelyn. 02 pl. pl. of Tree. 1. pl. of Tree.obs. See: Tree