Look up tree or tree- in Wiktionary, the free dictionary.

A tree is a perennial woody plant.

Tree or trees may also refer to:

• Tree structure or tree diagram, a way of representing a hierarchical nature of structure in a graphical form
• Family tree, used in genealogy to show familial relationships
• Decision tree, a tree model of decisions and their consequences
• Dialogue tree, used to generate conversations
• Parse tree, used in linguistics to represent the syntax of sentences

• Tree (descriptive set theory), a set of finite sequences of elements of X that is closed under subsequences, on a set X
• Tree (graph theory), a connected graph without cycles
• Tree (set theory), like a graph-theory tree, but with a distinguished root, and possibly having chains of transfinite length
• Tree diagram (probability theory), a tree-like representation of a probability space
• TREE, an extremely fast-growing function; see Kruskal's tree theorem

• Tree (automata theory)
• Tree (command), a recursive directory listing program that produces a depth indented listing of files
• Tree (data structure), a widely used computer data structure that emulates a tree structure with a set of linked nodes
• Tree network, a type of computer and communication network topology
• Digital tree, prefix tree or trie, a computer science ordered tree data structure

• The Tree (1969 film), an American film directed by Robert Guenette
• The Tree (1993 film), a short film
• The Tree (2001 film), a Singaporean film directed by Daisy Chan
• The Tree (2010 film), an Australian/French film directed by Julie Bertuccelli
• The Tree (2014 film), a Slovenian film directed by Sonja Prosenc

• Tree (novel), a 1978 historical novel by F. Sionil José
• "Trees" (poem), a 1913 poem by Joyce Kilmer
• The Trees (Richter novel), a 1940 novel by Conrad Richter
• The Tree (book), an autobiographical book by John Fowles
• The Tree (play), a 1957 play by Stella Jones
• "The Tree" (short story), a short horror story by H. P. Lovecraft
• Ms. Tree, a comic book and the title character
• Trees (comics), a science fiction comic book series by Warren Ellis and Jason Howard
• Trends in Ecology and Evolution, a scientific journal
• Our Father Who Art in the Tree, a 2002 novel by Judy Pascoe, reprinted in 2010 as simply The Tree
• The Trees (Everett novel), a 2022 novel by Percival Everett

• Trees (band), British folk band

• Trees (Avantdale Bowling Club album), 2022
• Tree (Gaelic Storm album), 2001
• Tree (Johnny Duhan album), 2002
• Tree (TVXQ album), 2014
• Tree (Sekai no Owari album),2015
• The Tree (album), 2018

• "Trees", a 1961 song by the Platters
• "Trees", a song by Twenty One Pilots from the album Vessel, 2013
• "The Trees" (Rush song), a 1978 song by Rush
• "The Trees" (Pulp song), a 2001 song by Pulp
• "The Trees", a song by Autechre from the album Untilted, 2005
• "Trees", a 2011 song by Twenty One Pilots

• The Tree, a 1910 painting by Albert Gleitzes

• Tree (surname), a surname (including a list of people with the name)
• Keith "Tree" Barry (born 1964), American musician
• Tree Gelbman, a fictional character in Happy Death Day and its sequel, Happy Death Day 2U
• Lavon "Tree" Mercer (born 1959), American-Israeli basketball player
• Tree Rollins (born 1955), American basketball player

• Tree (dominoes), a domino game in which every double is a spinner
• Tree (Wu Xing), the first movement in Wu Xing philosophy
• Tree River, a Canadian river
• Sacred tree, a tree believed to be sacred
• Stanford Tree, unofficial mascot of Stanford University
• The Tree (tonewood), a famous very large mahogany tree felled in Honduras, renowned for its highly-figured grain and popular with luthiers for guitar sides and backs
• Trees Dallas, a live music venue in the Deep Ellum district of Dallas, Texas
• Tree (installation), an art installation in Paris, France
• Shoe tree, a device for storing shoes
• Tree, the wooden understructure of a horse's saddle
• Tree model, about language family trees in historical linguistics

• All pages with titles beginning with tree
• All pages with titles containing tree
• Treeing, a method of hunting with dogs
• Electrical treeing
• Tre (disambiguation)

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