The crown or uppermost branches of a tree

plural of treehouse

(transitive) To turn into a tree.

simple past tense and past participle of tree

Planted or covered with trees.

(uncountable) A movement of people from cities to the countryside. / (countable) An act of relocating from an urban to a rural community.

plural of treehopper

plural of treecreeper

(linguistics, computational linguistics) A database of sentences which are annotated with syntactic information, often in the form of a tree.

(linguistics, computational linguistics) To parse and annotate sentences according to a treebank.