tree

¹ American  

[tree] / tri /

noun

1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground.

2. any of various shrubs, bushes, and plants, as the banana, resembling a tree in form and size.

3. something resembling a tree in shape, as a clothes tree or a crosstree.

4. Mathematics, Linguistics. tree diagram.

5. family tree.

6. a pole, post, beam, bar, handle, or the like, as one forming part of some structure.

7. a shoetree or boot tree.

8. a saddletree.

9. a treelike group of crystals, as one forming in an electrolytic cell.

10. a gallows or gibbet.

11. the cross on which Christ was crucified.

12. Computers. a data structure organized like a tree whose nodes store data elements and whose branches represent pointers to other nodes in the tree.

13. Christmas tree.

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verb (used with object)

treed, treeing

1. to drive into or up a tree, as a pursued animal or person.

2. Informal. to put into a difficult position.

3. to stretch or shape on a tree, as a boot.

4. to furnish (a structure) with a tree.

idioms

1. up a tree, in a difficult or embarrassing situation; at a loss; stumped.

Tree ² American  

[tree] / tri /

noun

1. Sir Herbert Beerbohm Herbert Beerbohm, 1853–1917, English actor and theater manager; brother of Max Beerbohm.

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Tree ¹ British  

/ triː /

noun

1. Sir Herbert Beerbohm . 1853–1917, English actor and theatre manager; half-brother of Sir Max Beerbohm. He was noted for his lavish productions of Shakespeare

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tree ² British  

/ triː /

noun

1. any large woody perennial plant with a distinct trunk giving rise to branches or leaves at some distance from the ground

2. any plant that resembles this but has a trunk not made of wood, such as a palm tree

3. a wooden post, bar, etc

4. See family tree shoetree saddletree

5. chem a treelike crystal growth; dendrite

6. 1. a branching diagrammatic representation of something, such as the grammatical structure of a sentence

   2. ( as modifier )

      a tree diagram

7. an archaic word for gallows

8. archaic the cross on which Christ was crucified

9. in the highest position of a profession, etc

10. informal in a difficult situation; trapped or stumped

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verb

1. to drive or force up a tree

2. to shape or stretch (a shoe) on a shoetree

tree Scientific  

/ trē /

1. Any of a wide variety of perennial plants typically having a single woody stem, and usually branches and leaves. Many species of both gymnosperms (notably the conifers) and angiosperms grow in the form of trees. The ancient forests of the Devonian, Mississippian, and Pennsylvanian periods of the Paleozoic Era were dominated by trees belonging to groups of seedless plants such as the lycophytes. The strength and height of trees are made possible by the supportive conductive tissue known as vascular tissue.

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tree More Idioms  

1. see bark up the wrong tree; can't see the forest for the trees; talk someone's arm off (the bark off a tree); up a tree.

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Other Word Forms

• treeless adjective
• treelessness noun
• treelike adjective

Etymology

Origin of tree

First recorded before 900; Middle English; Old English trēo(w); cognate with Old Frisian, Old Norse trē, Old Saxon treo, Gothic triu; akin to Greek drŷs “oak,” Sanskrit, Avestan dru “wood”

Explanation

A tree is a large plant with a trunk, branches, and leaves. If you have an apple tree in your backyard, you'll have apples in the fall — and a nice shady place to sit in the summer. The thick, woody trunk is actually the stem of a tree, and its ability to grow so much taller than other plants evolved partly as a way for trees to absorb more sunlight. Trees do a lot for humans, including providing oxygen, giving us places to climb, producing fruit, shading us, and providing lumber and fuel. As a verb, tree means "chase into a tree," the way your dog might tree the neighbor's cat.

Example Sentences

The remaining $1 billion was set to go to specialty growers who produce fruits, vegetables, tree nuts and sugar, among other products, and are in a separate federal program from row-crop farms.

From Salon • Apr. 25, 2026

"The roots of the tree are still there," he says of the UK and US alliance.

From BBC • Apr. 24, 2026

Rather than neatly settling the debate, the result showed that snake origins were likely complex, with different branches of the snake family tree preserving different clues about how body shape, habitat, and feeding style evolved.

From Science Daily • Apr. 24, 2026

In this week’s Don’t Short Yourself newsletter, Andrew Keshner shared his experience after a tree branch fell and damaged his backyard fence.

From MarketWatch • Apr. 24, 2026

The shore was now only a few tree lengths away.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

Related Words

• forest
• sapling
• seedling
• shrub
• timber
• wood