/ Dictionary / Index T tree house: Meaning and Definition of Find definitions for: tree' house" Pronunciation: [key] a small house, esp. one for children to play in, built or placed up in the branches of a tree. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. treehopper tree-hugger Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language