treen /tɹiːn/noun 3adjective 1forms 3 noun3 •Household articles made of wood.These homely cups and dishes pay truly for that they contain: I had rather drink out of treene, and pay gold and silver, than drink out of gold and silver, and make wooden payment. — 1674 •(Scotland) A large wooden platter. •A territorial division in the Isle of Man. adjective1 •Pertaining to or derived from trees; wooden; made of wood.To shew our Reader yet, that these are no novel Experiments, we are to know, that a large Tract of the World almost altogether subsist on these Treen Liquors; Especially that of the Date, — 1670 formstreens · more treen · most treen