- T ... T’u-chüeh
- T’u-fan ... Ta-li cranium
- Ta-lien ... Tableau comparatif
- Tableau de Paris, Le ... tachygraphy
- tachylite ... Taeuber, Conrad
- Taeuber, Conrad; and Barnes Taeuber, Irene ... Ṭāherī
- Tahina palm ... tailed bracken
- tailed frog ... Taiyō no kisetsu
- Taiyuan ... Take Me Out
- Take Me Out to the Ball Game ... Talas Valley
- Talat Paşa ... Talese, Gay
- Taleyarkhan, Rusi ... Tallahassee Museum of History and Natural Science
- Tallahatchie River ... Taman Negara National Park
- Taman Siswa ... Tamias
- Tamias minimus ... Tan, Lucio
- Tan, N. A. ... Taneyev, Sergey Ivanovich
- Tanezrouft ... Tanimbar, Kepulauan
- Tanintharyi ... Tante Ulrikke
- Tantia Tope ... tape laying
- tape music ... Ṭarābulus
- Ṭarābulus ... tardiyyah
- Tardu ... Tarnoff, Peter
- Tarnopol ... Taru
- Taruc, Luis ... tasmiyah
- TASPO ... Tate, James
- Tate, John ... Taunggyi
- Taungu dynasty ... Tawau
- tawbah ... tayageum
- Tayama Katai ... Taylor, Richard
- Taylor, Richard ... Tchin-Tchin
- Tchitrea ... Teaching the Elements
- Teachings of Don Juan: A Yaqui Way of Knowledge, The ... technique
- Technique du coup d’état ... tefillin
- tefillin shel rosh ... Tekke
- Tekke carpet ... teleost
- Teleostei ... Tell Me How Long the Train’s Been Gone
- Tell Me Something Good ... Temmu
- Temne ... Temple, Le
- Temple, Presentation of Christ in the ... Ten Lost Tribes of Israel
- Ten Paradoxes ... Ténès
- Tenet ... tenor cor
- tenor drum ... tepe
- Tepe Gawra ... Terengganu
- Tereno ... Terminator 3: Rise of the Machines
- Terminator Genisys ... Terrapene carolina carolina
- terrapin ... Terrytuft
- Tersina viridis ... test match
- test of teaching knowledge ... Teton
- Teton Dam ... tetrataenite
- tetraterpene ... Texas Carnival
- Texas cattle fever ... Th
- TH1 ... Thales’ rectangle
- Thalia ... Tharpe, Sister Rosetta
- Tharrawaddy ... The Cavern
- Thé chez Miranda, Le ... Théâtre Optique
- Theatre Owners Booking Association ... theme
- theme ... Theodoric IV
- Theodoric of Prague ... theoretical plate number
- theoretical reductionism ... There Is a God: How the World’s Most Notorious Atheist Changed His Mind
- There is a Happy Land ... thermal-conductivity detector
- thermaling ... Thérouanne
- Theroux, Justin ... They Were Defeated
- They Were Expendable ... Thieves of Paradise
- thigh ... thiopental sodium
- thiophene ... Thirteen Days
- Thirteen Lives ... This Week
- This Week with David Brinkley ... Thomas, Danny
- Thomas, David ... Thompson, Ernest E.
- Thompson, Francis ... Thomson, Roy Herbert Thomson, 1st Baron
- Thomson, Sir C. Wyville ... thorn-elm
- Thorn-Prikker, Jan ... Thou, Jacques-Auguste de
- Thouars ... Three Ages of Man, The
- Three Amigos ... Three Places in New England
- Three Plastic Virtues, The ... three-striped tigerfish
- three-toed sloth ... Through the Eye of the Needle
- Through the Ivory Gate ... Thunberg, Greta
- Thunberg, Greta Tintin Eleonora Ernman ... Thurstone, L. L.
- Thurstone, Louis Leon ... ti
- ti ... Tibet Autonomous Region
- Tibet, Plateau of ... tide
- Tide of Fortune, The ... Tiger and the Snow, The
- tiger barb ... Tigrisomatinae
- Tigua ... tillana
- Tillandsia ... Timberlake, Justin Randall
- timberline ... time-travel paradox
- timed out ... Tin Can Tree, The
- Tin Cup ... tinkerbird
- tinkhundla ... Tired of Being Alone
- Tired of Waiting for You ... tissue
- tissue bank ... Tito, Josip Broz
- Titograd ... Tlaquepaque
- Tlatelolco ... To Make My Bread
- To Marcia ... Tobit
- Tobit ... toe
- toe overhead lift ... Tok Pisin
- Toka Gorge ... Tōkyō Kokuritsu Hakubutsukan
- Tokyo Marathon ... Tolkien, John Ronald Reuel
- toll ... Tomanivi, Mount
- Tomar ... Tommy Boy Records
- Tommy Boy Records: Rocking the Planet from West 85th Street ... Tongguan
- Tonghae ... Tontonia appendiculariformis
- Tontons Macoutes ... top predator
- top quark ... tOPV
- toque ... Tornado, The
- tornaria larva ... Torres Cabrera, José Miguel
- Torres Islands ... torus
- torus ... Tote Taube in der Beethovenstrasse
- Tote’m Stores ... Toulouse, Battle of
- Toulouse, Foulques de ... Toutswe
- Ṭov Baer ... Townshend, Sir Charles
- township ... Tozeur
- Tozzer, Alfred M. ... Trackers
- tracking ... Trade-Union Act
- trade-wind cell ... Tragic Kingdom
- Tragic Muse, The ... Traité des maladies mentales
- Traité des membranes ... Trans-fixed
- Trans-Himalayas ... Transfer of Functions Act
- transfer orbit ... transit tax
- transit village ... transpiration
- transpiration cohesion hypothesis ... Transylvania Convention
- Transylvania University ... Träume eines Geistersehers erläutert durch Träume der Metaphysik
- Traumnovelle ... Travers, Mary Allin
- Travers, Morris W. ... Treatise on Epicurean Philosophy
- Treatise on Febrile and Other Diseases ... tree heath
- tree hyrax ... Tremblay, François Joseph Le Clerc du
- Tremblay, Michel ... Treroninae
- Tres aproximaciones a la literatura de nuestro tiempo ... triad
- triad ... tribological ceramics
- tribology ... Tricholoma pardinium
- Trichomanes ... Trieu Da
- trifecta ... trimethylene
- trimethylxanthine ... trionychine
- Triops ... Tripolis
- Tripolitan War ... Triton
- Triton ... Trogir
- Troglodytidae ... trompe l’oeil
- Trompe le Monde ... tropical storm
- tropical upper tropospheric trough ... Trouville
- Trouville-sur-Mer ... True Crime
- true crocodile ... Truk Islands
- Trullan Synod ... Truscott-Jones, Reginald Alfred John
- Truso ... trypanosomiasis
- Trypetheliales ... Tsek’ehne
- Tselinograd ... Tsui Hark
- Tsui no shintaku ... Tu-22M
- Tu-26 ... Tubou
- Ṭubruq ... Tuffier, Théodore
- tuft tree ... Tulip Craze
- Tulip Fever ... Tummel, Loch
- Tummel, River ... Tungusic languages
- Tunguska event ... Tupí-Guaraní languages
- Tupí-Kawaíb ... turbulence, primordial
- turbulent flow ... Turkey, history of
- Turkey, Republic of ... Turner Broadcasting System, Inc.
- Turner Classic Movies ... turpentine, spirit of
- Turpin, Ben ... tussie-mussie
- Tussman, Malka Heifetz ... TWA
- TWA flight 800 ... Twenty-one Demands
- Twenty-one Points ... twisted moss
- twisted sun orchid ... Two Ways of Life, The
- Two Weeks ... Tyana
- Tyapi language ... Type 091
- Type 093 ... Typha angustifolia
- Typha latifolia ... tyrosinase
- tyrosine ... Tʿbilisi
