- T ... T’u-men Chiang
- T’u-ti Kung ... Ta-kou
- Ta-li ... table sugar
- table talk ... Tachos
- Tachtigers ... Taejong
- taekeum ... Tagus River
- Tagus valley ... Taikō Josetsu
- Taikō land survey ... Taiwan earthquake of 1999
- Taiwan earthquake of 2024 ... Takarazuka
- Takasago ... Takuan Sōhō
- Takulli ... Tales from Ovid
- Tales from Shakespear ... Tall Buildings and Urban Habitat, Council on
- Tall Chief, Elizabeth Marie ... talus
- talus cave ... Tambor, Jeffrey
- Tambor, Jeffrey Michael ... tampon
- Tamralipta ... tandem accelerator
- tandem bicycle ... Tango
- Tango & Cash ... tanning
- tanning ... Taosi
- taotie ... Tāq-i-Bustān
- taqasīm ... Tarasova, Alla Konstantinovna
- Tarasque ... Tārīkh-e Badāʾūnī
- Tārīkh-e Fereshteh ... Tarsius syrichta
- Tarsius tarsier ... Task Force Drysdale
- Task Force Green ... Tata Sons
- Tata, J.R.D. ... Tattoo You
- Tattvachintamani ... tautog
- Tautoga onitis ... taxad
- Taxandria ... Taylor, Elizabeth
- Taylor, Frank B. ... Tayra barbara
- Taysafun ... Te Deum
- Te Deum ... Tears of a Clown, The
- Tears of the Indians, The ... Tectariaceae
- tectogene ... Teggart, Frederick John
- Tegh Bahādur, Guru ... Tel Aviv–Joppa
- Tel Aviv–Yāfa ... telephone tapping
- Telephones ... Tell, Wilhelm
- Tell, William ... Temnospondyli
- Temnothorax ... Temple, Shirley
- Temple, Shirley Jane ... Ten Kingdoms
- Ten Little Indians ... Tenerife
- Tenerife airport disaster ... Tenodera sinensis
- tenofovir ... teosinte
- Teotihuacán ... Teredinidae
- Teredo ... terminal, airport
- Terminal, The ... terrace cultivation
- terrace vase ... Terrorists and Novelists
- Terrors of the Night, The ... tessellated pavement
- tessen-byō ... tetany
- Tete ... Tetrapharmacon
- Tetraphidae ... Tewkesbury
- Tewkesbury ... textual criticism
- textual transmission ... Ṭhākur, Debendranāth
- Ṭhākur, Rabīndranāth ... Thang Long
- thang-ka ... thatch screw pine
- Thatch, Edward ... The Comedians, Op. 26
- The Controversy over Female Genital Cutting ... The Matrix
- The Mechanical Turk: AI Marvel or Parlor Trick? ... The Trinity
- The True Story Behind Feud: Capote vs. the Swans ... Thebaud, Simon
- Thebes ... Theobald the Cheat
- Theobald the Great ... Theodotion
- Theodotus ... Theory of Communicative Action, The
- Theory of Culture Change: The Methodology of Multilinear Evolution ... Thérèse of Lisieux, St
- Thérèse Raquin ... thermocouple gauge
- thermocouple pyrometer ... These 8 Buildings Will Make You See Norway in a New Light
- These Are My Rivers ... thiasoi
- Thiazi ... thimble
- Thimble Shoal Channel ... third
- Third Amendment ... Thirteen Ways of Looking at the Novel
- Thirteen Years’ War ... This Year’s Model
- This, Hervé ... Thomas, Cyrus
- Thomas, D.M. ... Thompson, Dick
- Thompson, Dorothy ... Thomson, John Turnbull
- Thomson, Joseph ... thorn apple
- thorn apple ... Those the River Keeps
- Those Who Leave and Those Who Stay ... threat-alert level
- threat-submission behaviour ... three of a kind
- Three Officials ... three-leaf akebia
- three-level laser ... thromboxane A2
- thrombus ... Thullier, Mount
- thuluth script ... Thurmond, Nathaniel
- Thurmond, Strom ... Thyrsoidea macrurus
- Thyrsopteridaceae ... Tibbet, Lawrence
- Tibbets, Paul Warfield, Jr. ... Ticlio
- Ticodendraceae ... Tierra San Martín
- tierra templada ... Tigranes
- Tigranes II The Great ... Tildy, Zoltán
- tile ... tilting gate
- tilting, automatic body ... Time Pieces: A Dublin Memoir
- time preference ... Times of London, The
- Times Square ... tin whistle
- Tin Woodman, the ... Tinsukia
- tint ... Tirich Mir
- Tiridates I ... tissue factor
- tissue plasminogen activator ... Tito, Josip Broz
- Titograd ... Tlapanec languages
- Tlaquepaque ... To Kill a Mockingbird
- To Kill a Mockingbird ... Tobias
- Tobias and the Angel ... Today in History—December 10: The Great Emu War Ends (Badly, for Humans)
- Today in History—December 11: The GoodFellas Behind the Lufthansa Heist ... Today in History—March 24: The Lecture That Unraveled the Mystery of Tuberculosis
- Today in History—March 25: All Aboard History for the First Passenger Railway Launch ... Toemoek-Hoemak Gebergte
- Toeschi, Carlo Giuseppe ... Tōkai Ginkō
- Tōkai region ... Tokyo Nichi-Nichi
- Tokyo Rose ... Toll pathway
- Toll signaling pathway ... Tomarctus
- Tomás and the Library Lady ... Tommy
- Tommy Boy ... Tonge, Israel
- Tongeren ... Tonti, Henri de
- Tonti, Lorenzo de ... Top Gun
- Top Gun: Maverick ... topping
- topping refinery ... Tormé, Melvin Howard
- Torment ... Torre, Joe
- Torre, Pablo S. ... Tortonian Stage
- Tortosa ... Total Refusal
- Total Request Live ... Touggourt
- Tough Guys ... Tournon
- Tournon, Charles Thomas Maillard de ... Townes
- Townes, Charles Hard ... Tōyō
- Tōyō jiyū shimbun ... Trachodon
- trachodont ... Trade Disputes Act
- Trade Disputes Act ... traffic sign
- traffic signal ... train sickness
- Train to Pakistan ... Tran, Kelly Marie
- Trance ... Transcendental Meditation
- transcendental method ... transfusion
- transfusion-induced immune reaction ... transliteration
- translocase of outer mitochondrial membrane 40 homolog ... transthyretin
- Transtisza ... trapping mechanism
- Trappist ... Traveling Miles
- traveling post-office system ... treacle
- Treacle Walker ... Treatment Investigational New Drug
- treatment, storage, or disposal facility ... tree, world
- tree-ring dating ... trench roll back
- trench silo ... tresviri
- Tretā Yuga ... Trial, The
- Trial, The ... tribune
- Tribune Company ... Trichosurus vulpecula
- trichotomy law ... Trigger
- Trigger Warning: Short Fictions and Disturbances ... Trincomalee, Battle of
- Trindade Coelho, José Francisco ... Tripartitum
- Triparty en la science des nombres ... Tripura
- Tripura Hills ... triumph
- triumph ... Trogontherium
- Trogossitidae ... Tron
- Tron Kirk ... tropical yam
- tropical year ... trow
- Trow, Ann ... True Detective
- True Devotion to the Blessed Virgin ... trullo
- Trullo, Council in ... trunk
- trunk ... Tryambakeshvar
- Tryblidia ... tschego
- Tschermak von Seysenegg, Erich ... Tsotsi
- Tsou Yen ... TTL metering
- TTM ... Tubero, Orosius
- tuberose ... Tudela, Benjamin of
- Tuder ... Tukulti-apil-esharra I
- Tukulti-apil-esharra II ... Tumak
- Tumakuru ... tuner
- Tung ... Tunnel, Der
- Tunnel, The ... Turba
- turban ... Turin, Treaty of
- Turin, University of ... Turkmenbashi
- Turkmenbashi ... Turnfest
- Turnhalle Alliance ... turumagi
- Turun Sanomat Building ... Tuvalu
- Tuvalu, flag of ... Twelve Apostles, Council of the
- Twelve Articles ... twill
- twill weave ... Two Days, The
- Two Deaths of Senora Puccini, The ... two-factor theory
- two-field system ... Tyiwara
- Tyla ... type h climate
- type I CDG ... Typhoon Marie
- Typhoon Nina–Banqiao dam failure ... Tyrwhitt, Reginald
- Tyrwhitt, Thomas ... Tết Nguyên Ɖán