• enPR: trē, IPA: /tɹiː/, [tɹiː], [t͡ʃɹiː], [t̠͡ɹ̠̊˔ʷɪi̯]

tree (plural trees)

1. A perennial woody plant taller and larger than a bush with a wooden trunk and, at some distance from the ground, leaves and branches.

   Hyperion is the tallest living tree in the world.

   Birds have a nest in a tree in the garden.

   • 1992 April 5, “The Full House”, in Jeeves and Wooster, Series 3, Episode 2:

     B. Wooster: Of all the places on this great planet of ours, West Neck, Long Island, has chosen to be the most unexciting. The last time anything remotely interesting happened here was in 1842, when a tree fell over. They still talk about it in the village.

2. Any other plant (such as a large shrub or herb) that is reminiscent of the above in form and size.

   The banana tree is a tall perennial herb: its trunk is not woody.

3. 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.

4. A device used to hold or stretch a shoe open.

   He put a shoe tree in each of his shoes.

5. The structural frame of a saddle.
6. (graph theory) A connected graph with no cycles or, if the graph is finite, equivalently a connected graph with n vertices and n−1 edges.
7. (computing theory) A recursive data structure in which each node has zero or more nodes as children.
8. (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.

9. Any structure or construct having branches representing divergence or possible choices.

   family tree; skill tree

10. The structure or wooden frame used in the construction of a saddle used in horse riding.
11. (often in the plural, slang) Marijuana.
    • 2017 September 22, “Man's Not Hot”‎performed by Big Shaq [Michael Dapaah]:

      Everyday man's on the block / Smoke trees (ah)

12. (archaic, outside, Christianity) A cross or gallows.

    Tyburn tree

    • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC ↗, Acts 5:30 ↗:

      The God of our fathers raised up Jesus, whom ye slew and hanged on a tree.

    • 1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC ↗, [Act III, scene ii], page 12 ↗:

      Ste[phano]. Trinculo, keepe a good tongue in your head: If you proue a mutineere, the next Tree: […]

    • 1997, Warren W. Wiersbe, The Names of Jesus:

      When Jesus died on that tree, he bore the awful curse of the law for us so that we might be saved.

    • 2004, Jon Courson, Jon Courson's Application Commentary, page 1130:

      Oh, that's not to say Peter's life was easy. In fact, he, too, ended up on a tree—not hung up by guilt, but crucified upside down on a cross for the sake of the One who not only hung on a tree for him, but rose and lived within him, empowering him to live a life of incredible impact and ministry.

    • 2015, Bruce Thomas, God's Purpose for His Creation:

      Jesus was crucified on a tree to give us life.

    • 2022, Sharmila Panirselvam, Life in the Hands of Jesus:

      Outside of Jerusalem, at Golgotha, Jesus was crucified on a tree with two other thieves because He claimed to be the king of the Jews.

13. (chemistry) A mass of crystals, aggregated in arborescent forms, obtained by precipitation of a metal from solution.
14. (cartomancy) The fifth Lenormand card.
15. (uncountable, math) .

• sapling
• seedling

• French: arbre
• German: Baum
• Italian: albero
• Portuguese: árvore
• Russian: де́рево
• Spanish: árbol

• German: Baum
• Italian: albero

• German: Schuhspanner
• Russian: распо́рка

• French: arçon

• French: arçon
• Spanish: fuste

• German: Baum
• Italian: albero
• Portuguese: árvore
• Russian: де́рево

• German: Baum
• Italian: albero
• Portuguese: árvore
• Russian: де́рево

• German: Baum
• Italian: albero
• Russian: де́рево

tree (trees, present participle treeing; simple past and past participle treed)

1. (transitive) To chase (an animal or person) up a tree.

   The dog treed the cat.

2. (transitive) To place in a tree.

   Black bears can tree their cubs for protection, but grizzly bears cannot.

3. (transitive) To place upon a tree; to fit with a tree; to stretch upon a tree.

   to tree a boot

4. (intransitive) To take refuge in a tree.

• Spanish: enarbolar

tree (uncountable)

1. (mathematics) An extremely fast-growing function based on Kruskal's tree theorem.

Topographic surname for someone who lived near a conspicuous tree.

1. Surname.

tree (uncountable)

1. (math)