(plural trees or treen) (plural "treen" is obsolete)
- A large plant, not exactly defined, but typically over four meters in height, a single trunk which grows in girth with age and branches (which also grow in circumference with age).
- Hyperion is the tallest living tree in the world.
- Birds have a nest in a tree in the garden.
- Any plant that is reminiscent of the above but not classified as a tree in the strict botanical sense: for example the banana "tree".
- An object made from a tree trunk and having multiple hooks or storage platforms.
- He had the choice of buying a scratching post or a cat tree.
- A device used to hold or stretch a shoe open.
- He put a shoe tree in each of his shoes.
- The structural frame of a saddle.
- (graph theory) A connected graph with no cycles or, equivalently, a connected graph with n vertices and n-1 edges.
- (computing theory) A recursive data structure in which each node has zero or more nodes as children.
- (graphical user interface) A display or listing of entries or elements such that there are primary and secondary entries shown, usually linked by drawn lines or by indenting to the right.
- We'll show it as a tree list.
- Any structure or construct having branches akin to (1).
- The structure or wooden frame used in the construction of a saddle used in horse riding.
- (informal) Marijuana.
- (chemistry) A mass of crystals, aggregated in arborescent forms, obtained by precipitation of a metal from solution.
(third-person singular simple present trees, present participle treeing, simple past and past participle treed)
- To chase (an animal or person) up a tree.
- The dog treed the cat.
- To place upon a tree; to fit with a tree; to stretch upon a tree.
- to tree a boot
From Middle English tree, tre, treo, treou, trew, trow, from Old English trÄ“o, trÄ“ow (“tree, wood, timber, beam, log, stake, stick, grove, cross, rood"), from Proto-Germanic *trewÄ… (“tree, wood"), from pre-Germanic *drÃ©uÌ¯om, thematic e-grade derivative of Proto-Indo-European *dÃ³ru (“tree"). Cognate with Scots tree (“wood, rod, stick"), North Frisian tre, trÃ¤ (“tree"), Middle Dutch tree (“tree"), Danish trÃ¦ (“tree"), Swedish trÃ¤ (“wood"), trÃ¤d (“tree"), Norwegian tre (“tree"), Icelandic trÃ© (“tree"), Gothic ð„ð‚ðŒ¹ðŒ¿ (triu, “tree, wood, piece of wood"), Albanian dru (“tree, wood"), Welsh dÃ¢r (“oaks"), Ancient Greek Î´ÏŒÏÏ… (dÃ³ry, “wood, spear"), Russian Ð´ÐµÑ€ÐµÐ²Ð¾ (derevo), Tocharian A or. Related to tar, true.