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| TFC - Tetrafluorocarburos (m.pl)  | FCKW - Fluorkohlenwasserstoff (m)  | CFC - Chlorofluorocarbon | Cholofluorocarbone (m)  | Clorofluorocarburo (m)  |  | 
| Tabique de panderete | Trennwand (f)  | Dividing Wall | Cloison séparative (f) | Parete divisoria  |  | 
| Tablero aglomerado (m)  / Tablero de virutas de madera comprimida (m)  | Holzspanplatte (f) / Spanplatte (f) / Flachpressplatte (f)  | Chipboard | Panneau d'aggloméré  (m) / Panneau de particules (m) / Aggloméré (m) | Truciolato (m) / Truciolare |  | 
| Tablero de fibra (m) / Fibra de madera (f) / Madera comprimida (f) | Faserplatte (f) / Holzfaserplatte (f)  | Fibreboard / Fiberboard | Panneau de fibres (m) / Plaque de fibre (f)  | Pannello di fibre / Cartone da fibra (m)  |  | 
| Tablón (m) | Bohle (f)  | Plank  | Planche (f) | Pancone (m)  |  | 
| Taenia | Taenia | Taenia | Taenia | Taenia |  | 
| Talla de madera (f) / Tallado de madera (m) / Xilografía (f)  | Holzschnitt (m) | Woodcut / Woodblock printing / Xylograph  | Gravure sur bois (f) / Estampe (f) | Xilografia (f)  |  | 
| Talonera y espiga (f)  | Normaler Zapfen (m) / Einfacher Zapfen (m)  | Stub mortise and tenon  | Poinçon mortaise et tenon (f)  | Stub mortise e tenone (m) |  | 
| Tamaño del grano (m) / Tamaño de las partículas (m)  | Korngrösse (f)  | Grain size / Particle size / Grit size | Granulométrie (f) / Grosseur de grain (f)  | Dimensione del grano (f) / Granulometria (f) |  | 
| Tambor (m)  | Tambour (m) (Kuppelunterbau) | Tambour | Tambour (m) / Trommel (f)  | Tamburo (m)  |  | 
| Tapa (f)  | Deckel (m)  | Lid  | Couvercle (m)  | Coperchio (m)  |  | 
| Tapa abovedada (f) | Gewölbekappe (f) / Domdeckel (m) | Dome cover / Arch cap | Capuchon arqué (m) / Couvercle du dôme (m) | Cappuccio ad arco / Copertura a cupola |  | 
| Tapa del alféizar de la ventana (f) | Fensterbankabdeckung (f) | Window sill cover | Tablettes de fenêtres / Appui de fenêtre (m) | Copri davanzale della finestra |  | 
| Tapa del capuchón (f)  | Kappendecke (f) / Preussische Kappendecke (f) / kurz Preussische Kappe (f) / Berliner Gewölbe (nt) | Barrel ceiling / Cap ceiling | Couvercle du capuchon (m) | Coperchio (m) |  | 
| Tapa del tubo de escape (f) / Campana extractora (f) | Dunstrohrhut (m) / Dunstrohrhaube (f) | Exhaust pipe cap / Extractor hood | Chapeau de tuyau d'échappement (m) / Hotte aspirante (f) | Cappello tubo di scarico / Cappa aspirante |  | 
| Tapar | Abdichten (v) | Seal(up) | Boucher | Tappare  |  | 
| Techo (liso) (m) | Decke (glatt) (f)  | Ceiling (smooth/flat) | Plafond (lisse) (m) | Soffitto (liscio) (m)  |  | 
| Techo (m) | Dach (nt) | Roof | Toit (m) | Tetto (m) |  | 
| Techo (m)  | Decke (f) | Ceiling  | Plafond (m)  | Soffitto (m) / Copertura |  | 
| Techo a cuatro aguas (m) | Krüppelwalmdach (nt)  | Crippled-hip roof | Toit en croupe paralysé (m)  | Tetto a padiglione paralizzato (m)  |  | 
| Techo colgante (m)  | Hängedach (nt)  | Suspension roof / Suspended roof / Hanging roof | Toit suspendu (m)  | Tetto pensile |  | 
| Techo compuesto de hormigón y madera (m) / Construcción mixta de madera y hormigón (f) | Holzbetonverbunddecke (f) / Holz-Beton Verbundkonstruktion (f) | Wood-concrete composite slab / Wood-concrete composite construction  | Plafond composite bois-béton (m) / Construction composite bois-béton (f)  | Controsoffitto composito legno-calcestruzzo / Costruzione composita legno-calcestruzzo (f) |  | 
| Techo cónico (m)  | Kegeldach (nt)  | Conical roof / Cone roof | Toit conique (m)  | Tetto conico (m)  |  | 
| Techo de la mansarda (m) / Buhardilla (f) | Mansarddach (nt)  | Mansard roof | Toit mansardé (m)  | Mansarda tetto (m)  | Telhado de mansarda (m)  | 
| Techo de medio cañón (m) Techo de media tonelada (m)  | Halbtonnendach (nt)  | Half barrel roof | Toit en demi-cylindre (m) / Demi toit de baril (m) | Mezza tetto barile |  | 
| Techo de zanja (m)  | Grabendach (nt) | Trench roof / Grave roof /Ditch roof | Toit en tranchée (m)  | Tetto di trincea |  | 
| Techo del piso (m) | Geschossdecke (f)  | Storey ceiling | Plafond de plain-pied (m)  | Soffitto a piani (m)  |  | 
| Techo plano (m) / Cubierta plana (f) | Flachdach (nt) | Flat roof | Toit plat (m) / Toiture plate (f) | Tetto piano |  | 
| Teja colmo (f) / Teja de cumbrera (f)  | Gratziegel (m) | Ridge tile / Hip tile | Tuile faîtière (f) / Tuile arêtière (f) | Tegola di colmo (f) |  | 
| Tejado ligero (m)  | Leichtdach (nt) | Lightweight roof | Toit léger (m)  | Tetto leggero (m)  | Telhado leve (m) | 
| Tejo (m)  | Eibe (f)  | Yew | If (m)  | Tasso (m)  |  | 
| Templo de Cella (m) | Cella Tempel (m) | Cella Temple  | Temple Cella (m) | Tempio di Cella (m) |  | 
| Templo de doble antena (m) | Doppelantentempel (m)  | Double-antenna temple | Temple à double antenne (m) | Tempio a doppia antenna (m) |  | 
| Templo de los Dipteros (m) | Dipteros Tempel (m) | Dipteros Temple  | Temple des Diptères (m) | Tempio dei Ditteri (m) |  | 
| Terremoto (m)  | Erdbeben (nt) | Earthquake  | Tremblement de terre (m)  | Terremoto (m)  |  | 
| Terreno (m.) | Terrain (nt.) | Terrain  | Terrain (m.) | Terreno (m.) |  | 
| Tholos, Rundtempel | Tholos, Rundtempel | Tholos, Rundtempel | Tholos, Rundtempel | Tholos, Rundtempel |  | 
| Tierra compactada (f)  | Stampflehm (m)  | Rammed earth / Rammed clay | Pisé  | Terra ramificata (f)  |  | 
| Tilo (m) | Linde (f) | Lime / Linden / Basswood | Tilleul (m) | Tiglio (m)  | Tília (f)  | 
| Tira de pilastra (f) / Lesena (f)  | Lisene (f) / Mauerblende | Pilaster strip  | Lésène (f) / Pilastre (m) | Lesena (f) / Lesene | Tira de pilastra (f)  | 
| Tira de recubrimiento (f) | Deckleiste (f) | Cover strip/bar | Bande de protection (f) | Striscia di copertura |  | 
| Tira para colgar (f)  | Einhängestreifen (m.pl) | Hanging strip | Bande de suspension (f)  | Striscia sospesa |  | 
| Tiza (f) / Caliza (f) | Kreide (f)  | Chalk  | Craie (f) / Crétacé (m)  | Gessetto (m) / Gesso (m) |  | 
| Toba (f)  | Kalktuff (m) / Quellkalk (m) / Quelltuff (m) / Bachtuff (m)  | Tufa / Calcareous tufa | Tuffeau (m)  | Tufo  |  | 
| Tonalidad (f)  | Farbton (m)  | Hue  | Teinte (f)  | Tonalità (f)  |  | 
| Trabajo comercial (m)  | Gewerk (nt) / Handwerk (nt)  | Trade / Tradework / Handwork | Métier (m) / Travail du commerce (m) | Commercio (m) |  | 
| Tracería (f)  | Masswerk (nt)  | Tracery | Entrelacs (m.pl)  | Trafori | Traçabilidade  | 
| Trampa de drenaje (f) / Sifón (m) | Geruchsverschluss (m) / Siphon (m) / Trap  | Odour seal / Anti-siphon trap / Siphon | Siphon (m) / Piège à odeurs  (m) | Trappola per odori / Sifone |  | 
| Trapecio (m) | Trapez (nt)  | Trapeze | Trapèze (m) | Trapezio (m) |  | 
| Tratamiento (m)  | Behandlung (f)  | Treatment  | Traitement (m)  | Trattamento (m)  |  | 
| Travesaño de ventana (m) / Peldaño transversal (m)  | Kreuzsprosse (f) | Glazing bar / Cross bar | Barreau croisé (m) / Barreau transversal (m)  | Piolo incrociato (m) / Piolo trasversale (m)  |  | 
| Treppe | Treppe | staircase, stairs, stairway | Treppe | Treppe |  | 
| Triángulo (m) | Dreieck (nt)  | Triangle | Triangle (m)  | Triangolo |  | 
| Tronco (m)  | Baumstamm (m)  | Trunk (tree trunk)  | Tronc d'arbre (f)  | Tronco (m)  |  | 
| Trumeau | Trumeau (m)  | Trumeau | Trumeau | Trumeau |  | 
| Tubo base (m) | Sockelrohr (nt) / Gussstiefel (m) | Base tube / Plinth tube | Tube de base (m)  | Tubo base (m)  |  | 
| Tubo de bajada (m) / Tubo de salida (m) | Ablaufrohr  (nt) | Drain/ Drainpipe | Tuyau de chute d'eau pluviale (m) / tuyau d'écoulement (m) | Tubo di scarico (m) |  | 
| Tubo de escape (m) | Dunstrohreinfassung (f) | Exhaust pipe surrounding | Entourage du tuyau d'échappement (m) | Bordo del tubo di scarico |  | 
| Tubo protector para conductos de techo (m)  | Schutzrohr für dachdurchführung (nt)  | Protective tube for roof penetration  | Tube de protection pour canalisations de toit (m)  | Tubo di protezione per la canalizzazione del tetto  |  | 
| Tímpano (m) | Tympanon (nt)  | Tympanum  | Tympan (m) | Timpano (m)  |  | 
| teja plana | Biberschwanzziegel | plain tile | tuile plate |  |  | 
| tejado de copete | Walmdach | hipped roof, hipped end roof | toit en croupe | tetto a padiglione, tetto a quattro spioventi |  | 
| tensar (lienzo)  | aufspannen (v)  | spread out  | tendre  | distendere |  | 
| terraza cubierta (f) | teileweise überdachte Terrasse (f)  | partly roofed terrace  | terrasse couverte (f) | terrazza parzialmente coperta (f) |  | 
| terreno | Terrain | terrain | terrain | terreno |  | 
| teñir | beizen (färben) (v)  | stain  | teinter  | tingere  |  | 
| timpano | Tympanon | tympanum |  | timpano |  | 
| tornear  | drehen (v) (drechseln)  | turn  | trousser  | tornire |  | 
| tornillo angolar | Winkelschraube | offset screw | vis d'angle | vite d'angolo |  | 
| tornillo de cáncamo  | Ringschraube | eye bolt | piton, tire-fond | golfare ad occhio cilindrica con gambo filettato |  | 
| torre del homenaje | Bergfried (m)  | keep | donjon (m) | battifredo (m) |  | 
| torre f. | Turm | tower | tour f. | torre |  | 
| trama de buhardilla (f)  | Gaubeneinfassung (f)  | Dormer edging / Dormer frame  | Liseré de lucarne (m) | Bordatura abbaino (f)  |  | 
| translúcido  | durchscheinend (adj)  | translucent  | translucide  | translucido  |  | 
| transparente | durchsichtig (adj)  | transparent  | transparent  | trasparente |  | 
| trasparentarse  | durchscheinen (v)  | shine through  | transparaître à travers (qc) | trasparire  |  | 
| travesaño | Querbalken | transom |  | traversa |  | 
| triangular  | dreieckig (adj)  | triangular  | triangulaire  | triangolare  |  | 
| triglifo | Triglyphe | triglyph | triglyphes | triglifo |  | 
| tóxico / venenoso | giftig (adj) | toxic / poisonous / venomous / noxic | toxique / vénéneux  | velenosamente |  |