| de | en | fr | it | es | pt | 
| Backstein | (red) brick | brique f. | mattone | ladrillo |  | 
| Bagger (Hydraulik-) (m) | Hydraulic excavator | Pelle hydraulique (f) | Escavatori idraulici | Excavadora hidráulica (f) |  | 
| Bagger (Mini) (m) | Mini-excavator | Mini-pelle mécanique (f) | Miniescavatore (m) | Miniexcavadora (f) |  | 
| Bakelit (nt) | Bakelite | Backélite (f) | Bachelite (f) | Baquelita (f) |  | 
| Bakterien (f.pl) | Bacteria | Bactéries (f.pl) | Batteri (m.pl) | Bacterias (f.pl) |  | 
| Baldachin (m) | Balaquin | Baldaquin (m) | Baldacchino (m) | Baldaquín (m) |  | 
| Balken (m) | Beam / Joist | Poutre (f) | Trave (f) | Viga (f) |  | 
| Balkendecke (f) | beam floor / joist ceiling / single floor / span ceiling | plafond (m) de barre (f) | soffitto (m) di barra (f) | cobertura (f) de viga (f) |  | 
| Balkon | balcony | balcon m. | balcone m. | balcon m. |  | 
| Ballen  (m) (Shellackpolitur) | Fad (french polish) | Tampon (m) | Tampone (m) | Muñequilla (f) |  | 
| Balsaholz (nt) | Balsa wood | Balsa (m) | Balsa (f) | Madera balsa (f) |  | 
| Balsam (m) | Balm | Baume (m) | Balsamo (m) | Bálsamo (m) |  | 
| Balsamterpentinöl (nt) | Oil of turpentine | Térébenthine (f) | Trementina (f) | Aguarrás (m) |  | 
| Band | strip, band | Band | Band | Band |  | 
| Banddurchzug |  |  |  |  |  | 
| Bandelwerk (nt) | Baroque strapwork | Garniture de volutes (f) | Guarnizione barocca alle volute (f) | Lacería (f) |  | 
| Bandfries |  |  |  |  |  | 
| Barbakane |  | barbacane f. |  |  |  | 
| Bariumgelb (nt) | Barium yellow | Jaune de baryum (m) | Giallo di barite (m) | Amarillo de bario (m) |  | 
| Bariumsulfat (nt) / Blanc fix (nt) | Barium sulfate | Sulfate de baryum (m) | Solfato di bario (m) | Sulfato de bario (m) |  | 
| Barock (nt) | Baroque | Baroque (m) | Barocco (m) | Barocco (m) |  | 
| Basis | foundation | base | basamento | basa |  | 
| Bast (m) | Bast | Raphia (m) | Rafia (f) | Ráfia (f) |  | 
| Bastion (f) | Bastion / Stronghold | bastion | bastione | bastion |  | 
| Bauholz (nt) | Timber | Bois de charpente (m) | Legname da costruzione (m) | Madera labrada (f) |  | 
| Baum (m) | Tree | Arbre (m) | Albero (m) | árbol (m) |  | 
| Baumkrone (f) | Treetop | Cime d'arbre (f) | Corona dell'albero (f) | Copa del árbol (f) |  | 
| Baumrinde (f) | Bark | Écorce d'arbre (f) | Corteccia (f) | Corteza de árbol (f) |  | 
| Baumstamm (m) | Trunk (tree trunk) | Tronc d'arbre (f) | Tronco (m) | Tronco (m) |  | 
| Baumwolle (f) | Cotton | Coton (m) | Cottone (m) | Algodón (m) |  | 
| Bauvisier (nt) / Provisorische Baugespanne (pl.) | Provisional building profiles/markers | Gabarits provioires (pl.) | Modinature e tracciamenti provvisori (pl.) |  |  | 
| Bauwerksabdichtung (f) | Structural waterproofing / Waterproofing of buildings  / Building sealing | Imperméabilisation des bâtiments (f) | Impermeabilizzazione di edifici | Sellado de edificios (m) |  | 
| Bayerischblau (nt) | Bavarian blue | Bleu de Bavière (m) | Blu bavarese (m) | Azul de Baviera (m) |  | 
| Becherglas (nt) | Beaker | Bécher (m) | Becher (m) | Vaso (m) |  | 
| Bedienung (f) (eines Gerätes) | Use / Operation | Utilisation (f) | Uso (m) | Manejo (m) |  | 
| Befall (m) | Infestation | Infestation (f) | Infestazione (f) | Infestación (f) |  | 
| Befestigung (f) | Attachment | Fixation (f) | Fissago (m) | Fijación (f) |  | 
| Befeuchtungsgerät (nt) | Humidifier | Humidificateur (m) | Umidificatore (m) | Humidificador (m) |  | 
| Begasung (f) | Fumigation | Désinfection au gaz (f) | Trattamento con camera a gas (m) | Gaseado (m) |  | 
| Begasungsmittel (nt) | Fumigant | Agent de fumigation (m) | Mezzo di fumigazione (m) | Agente de fumigación (m) |  | 
| Behandlung (f) | Treatment | Traitement (m) | Trattamento (m) | Tratamiento (m) |  | 
| Beil (nt) | Hatchet | Hache (f) | Accetta (f) | Hacha (m) |  | 
| Beinschwarz (nt) / Elfenbeinschwarz (nt) | Ivory black | Noir d'ivoire (m) | Nero d'avorio (m) | Negro de marfil (m) |  | 
| Beize (f) / Beizenfarbstoff (m) | Stain | Teinture (f) | Mordente (m) | Mordente (m) / Colorante que requiere mordente (f) |  | 
| Beizeisen |  |  |  |  |  | 
| Beleuchtung (f) | Illumination / Lighting | Éclairage (m) | Illuminazione (f) | Iluminación (f) |  | 
| Belüftung (f) | Ventilation | Aération (f) | Ventilazione (f) | Ventilación (f) |  | 
| Benzen (nt) | Benzene | Benzéne | Benzene | Benceno |  | 
| Benzin (nt) | Gasoline / Petrol | Essence (f) | Benzina (f) | Gasolina (f) |  | 
| Benzoeharz (nt) | Benzoe / Styrax resin | Benjoin (m) | Resina di benzoino (f) | Benjuí (m) |  | 
| Benzotriazol (BTA) (nt) | Benzotriazole | Benzotriazole (m) | Benzotriazolo (m) | Benzotriazol (m) |  | 
| Berberitzen-Extrakt (m) / Berberin (nt) | Barberry extract / Berberine | Extrait d'épine-vinette (m) | Estratto di crespino (m) | Extracto de berberis (m) |  | 
| Bereich (m) | Area | Endroit (m) | Ambito (m) | ámbito (m) |  | 
| Bergblau (nt) / Azurblau (nt) | Mountain blue / Azure | Azur (m) | Azzurro (m) | Azur (m) |  | 
| Bergfried (m) | keep | donjon (m) | battifredo (m) | torre del homenaje |  | 
| Berggrün (nt) | Mountain green | Vert de montagne (m) | Verde di montagna (m) | Verde de las montañas (m) |  | 
| Berliner Blau (nt) | Berlin blue | Bleu de Berlin (m) | Blu di Berlino (m) | Azul de Berlín (m) |  | 
| Bernstein (m) | Amber | Ambre juane (m) | Ambra (f) | ámbar (m) |  | 
| Beryll (m) | Beryl | Béryl (m) | Berillo (m) | Berilio (m) |  | 
| Beschallung (f) | Acoustic irradiation | Sonorisation (f) | Sonorizzazione (f) | Sonorización (f) |  | 
| Beschlagwerk (nt) | Slapwork | Ferrures (f.pl) | Decorazione che imita lo sbalzo (f) | Ornamentación de correas tejidas (f) |  | 
| Beschleunigungs-Massenspektrometrie (f) | Accelerator mass spectrometry (AMS) | Spectrométrie de masse par accélérateur (f) | Spettrometria di massa con acceleratore (f) | Espectrometría de aceleración de masas (f) |  | 
| Beständigkeit (f) | Resistance | Résistance (f) | Resistenza (f) | Resistencia (f) |  | 
| Beton (m) | Concrete | Béton (m) | Cemento (m) | Concreto (m) |  | 
| Betonaufbau in Rundformen |  |  |  |  |  | 
| Betonbalkendecke (f) | concrete beam floor / joist ceiling / single floor / span ceiling | plafond (m) de barre (f) en béton (m) | soffitto (m) di barra (f) da calcestruzzo | cobertura (f) de viga (f) en concreto (m) |  | 
| Betondecke | concrete ceiling | plafond au béton | copertura in calcestruzzo | firme de hormigón |  | 
| Betonlamellen |  |  |  |  |  | 
| Betonziegel |  |  |  |  |  | 
| Betrachter (m) | Spectator / Beholder | Spectateur (m) | Spettatore (m) | Espectador (m) |  | 
| Betrieb (m) | Operation / Enterprise / Company / Business / Plant | Fonctionnement (m) / Entreprise (f) / Exploitation (f) | Operazione (f) / Azione (f) / Funzionamento (m) | Funcionamiento (m) / Empresa (f) / Servicio (m) | Funcionamento (m) / Empresa (f) / Serviço (m) | 
| Beugung (f) | Diffraction | Diffraction (f) | Diffrazione (f) | Difracción (f) |  | 
| Beulen)  (v) , ausbilden (Risse | form | former | formare | formar |  | 
| Bewehrung horizontal | horizontal armoring | armature horizontale | armatura orizzontale | armadura horizontal |  | 
| Bewehrung vertikal | vertical armoring | armature verticale | armatura verticale | armadura vertical |  | 
| Beweis (m) | Evidence | Preuve (f) | Evidenza (f) | Prueba (f) |  | 
| Bezugstoff (m) / Polsterstoff (m) | Cover fabric / Covering / Upholstery | Housse (f) / Tissu de revêtement | Ricoperta di stoffa (f) | Funda (f) / Tejido de cubierta |  | 
| Biberschwanzziegel | plain tile | tuile plate |  | teja plana |  | 
| Biedermeierstil (nt) | Biedermeier style | Biedermeier (m) | Stile Biedermeier (m) | Estilo Biedermeier (m) |  | 
| Bienenwachs (nt) | Beeswax | Cire d'abeille (f) | Cera d'api (f) | Cera de abeja (f) |  | 
| Bild (nt) | Picture | Image (f) | Imagine (f) | Cuadro (m) |  | 
| Bilderfirnis (m) | Picture varnish | Vernis de peinture (m) | Vernice dipinti (f) | Barniz (m) (para pinturas) |  | 
| Bildhauer (m) | Sculptor | Sculpteur (m) | Scultore (m) | Escultor (m) |  | 
| Bildnis (nt) | Portrait | Portrait (m) | Ritratto (m) | Retrato (m) |  | 
| Bildträger (m) | Image carrier | Support (m) | Sopporto (m) | Soporte (m) |  | 
| Bimsmehl (nt) | Pumice powder | Pierre ponce moulue (f) | Pomice (f) | Polvo de piedra pómez (m) |  | 
| Bimsstein (m) | Pumice stone | Pierre ponce (f) | Pietra pomice (f) | Piedra pómez (f) |  | 
| Bindemittel (nt) | Binder | Liant (m) | Legante (m) | Aglutinate (m) |  | 
| Bindfaden (m) | String | Ficelle (f) | Spago (m) | Hilo (m) |  | 
| Bindung (f) | Binding / Cohesion | Liaison (f) | Legame (m) | Cohesión (m) |  | 
| Binokularmikroskop (nt) | Binocular microscope | Microscope binoculaire (m) | Microscopio biocolare (m) | Microscopio binocular (m) |  | 
| Biologe (m) | Biologist | Biologiste (m) | Biologo (m) | Biólogo (m) |  | 
| Bioorganismen (m.pl) | Biological organisms (pl) | Organismes biologiques (m.pl) | Organismi biologici (m.pl) | Organismos biológicos (m.pl) |  | 
| Birke (f) / Birkenholz (nt) | Birch | Bouleau (m) (Bois de bouleau, m) | Betulla (Legno di betulla, m) | Abedul (m) (Madera de abedul, f) |  | 
| Birnbaum (m) | Pear tree | Poirier (m) | Pero (m) | Peral (m) |  | 
| Bismut (n) | Bismuth | Bismuth (m) | Bismuto (m) | Bismuto (m) |  | 
| Bister (m) | Bistre | Bistre (m) | Bistro (m) | Bistre (m) |  | 
| Bitumen (nt) | Bitumen | Bitume (m) | Bitume (m) | Betún (m) |  | 
| Blase (f) | Bubble | Bulle (f) | Bolla (f) | Burbuja (f) |  | 
| Blasenbildung (f) | Blistering | Formation de bulles (f) | Formazione di bolle (f) | Formación de burbujas (f) |  | 
| Blastzapfen (m ) | Blastpin | Sarbacane (f) | Cannello (m) | Cerbatana (f) |  | 
| Blastzapfen am Rahm (m) | Trunnion on the frame | Tourillon sur le cadre (m) | Ancoraggio a cerniera sul telaio (m) | Muñón en el marco (m) |  | 
| Blattgold (nt) | Gold leaf | Feuille d'or (f) | Foglia d'oro (f) | Hoja de oro (f) |  | 
| Blattstoss (m) / Gerades Blatt (nt) | Halving joint / Half-lap scarf joint / Straight leaf joint / Straight leaf connection | Connexion à lame droite (f) / Joint de réduction de moitié (m) | Attacco lama dritto (m) / Giunto di dimezzamento (m) | Hoja recta (f) |  | 
| Blech (nt) | Sheet metal | Tôle (f) | Lamiera (f) | Hojalata (f) |  | 
| Blei (nt) | Lead | Plomb (m) | Piombo (m) | Plomo (m) |  | 
| Bleiglasfenster-Horizontalstab | Bleiglasfenster-Horizontalstab | Bleiglasfenster-Horizontalstab | Bleiglasfenster-Horizontalstab | Bleiglasfenster-Horizontalstab |  | 
| Bleilappen | lug of lead | abergements de plomb | lobo di piombo | Bleilappen |  | 
| Bleistift (m) | Pencil | Crayon (m) | Matita (f) | Lápiz (f) |  | 
| Bleistreifen | stride of leadcover | bandes de plomb | striatura di biombo | Bleistreifen |  | 
| Blendrahmen | window frame / blind frame | châssis de fenêtre | telaio della finestra | precerco |  | 
| Blindholz (nt) | Construction wood | Contreplaqué (m) | Compensato (m) | Madera de baja calida que se usa ein lugares no visibles (f) |  | 
| Blitzableiter | lightning conductor | paratonnerre m. | parafulmine m. | pararrayos |  | 
| Bogenbinder | Bogenbinder | Bogenbinder | Bogenbinder | Bogenbinder |  | 
| Bogennische mit Statue | Bogennische mit Statue | Bogennische mit Statue | Bogennische mit Statue | Bogennische mit Statue |  | 
| Bogenrücken | Bogenrücken | Bogenrücken | Bogenrücken | Bogenrücken |  | 
| Bohle (f) | Plank | Planche (f) | Pancone (m) | Tablón (m) |  | 
| Bohrer mit Meisselschneide | borer | foreur / perceur | trapano | barrena / trépano con corte de cincel |  | 
| Bohrhammer (m) | Rotary hammer / Hammer drill | Marteau perforateur (m) | Martello perforatore (m) | Martilla Perforador (m) |  | 
| Boiler |  |  |  |  |  | 
| Bord | brim / shelf | bord | bordo | bordo |  | 
| Borke (f) | Bark | Écorce (f) | Corteccia (f) | Corteza (f) |  | 
| Brandschutz (m) | Fire protection | Protection contre les incendies (f) | Protezione antincendio (f) | Protección contra incendios (f) |  | 
| Brazilholz (nt) / Fernambukholz (nt) | Brazil wood | Pernambouc (m) | Pernambuco (m) | Pernambuco (m) |  | 
| Breite (f) | Width | Largeur (f) | Larghezza (f) | Anchura (f) |  | 
| Brett (nt) / Diele (f) | Board / Plank | Planche (f) | L'asse (f) / Tavola (f) | Sofito (m) / Tabla (f) |  | 
| Brettchen (fest) (nt) | Slat / Small board, solid | Comprimé solide (m) | Compresse, solido | Comprimido sólido (m) |  | 
| Brettstapelelemente (n) | board pile elements | Brettstapelelemente (n) | Brettstapelelemente (n) | Brettstapelelemente (n) |  | 
| Briden (f) | Briden (f) | brides (f) | Briden (f) | Briden (f) |  | 
| Briden auf Holz | Briden auf Holz | Brides sur bois | Briden auf Holz | Briden auf Holz |  | 
| Briefkasten |  |  |  |  |  | 
| Bronze (f) | Bronze | Bronze (f) | Bronzo (m) | Bronce (m) |  | 
| Brustblech | Brustblech | Tablettes | Brustblech | Brustblech |  | 
| Brustzapfen (m) | Trunnion | Tourillon (m) | Orecchione | Muñón (m) |  | 
| Brüstung |  |  |  |  |  | 
| Brüstung, seitlich |  |  |  |  |  | 
| Brüstungsband |  |  |  |  |  | 
| Buche (f) / Buchenholz (nt) | Beech | Hêtre (m) | Faggio (m) | Haya (f) |  | 
| Bug |  |  |  |  |  | 
| Burg Küche (f) | Castle Kitchen | Cuisine du château | Cucina del castello | Cocina del Castillo |  | 
| Burggraben | castle moat | fossé m. | fossato | foso del castillo |  | 
| Burghof (m) | Castle courtyard / Bailey | Cour du château (f) | Cortile del castello | Patio del castillo |  | 
| Bündelpfeiler | Bündelpfeiler | Bündelpfeiler | Bündelpfeiler | Bündelpfeiler |  | 
| Bürste (f) | Brush | Brosse (f) | Spazzola (f) | Cepillo (m) |  | 
| basisch (adj) | basic | basique | basico | básico |  | 
| beeinflussen (v) | influence | influencer | influenzare | influir |  | 
| befallen (v) | infest | infester | infestare | infestar |  | 
| befestigen (v) | attach | attacher | fissare | sujetar |  | 
| begasen (v) | fumigate | gazer | trattare con gas (tarli) | gasear |  | 
| beimischen (v) | add / mix | ajouter | miscelare | añadir |  | 
| beizen (färben) (v) | stain | teinter | tingere | teñir |  | 
| beleuchten (v) | illuminate | éclairer | illuminare | alumbrar |  | 
| belüften (v) | ventilate | aérer | ventilare | ventilar |  | 
| beschleunigen  (v) | accelerate | accélérer | accelerare | acelerar |  | 
| beschädigt (adj) | damaged | abîmé | danneggiato | deteriorado |  | 
| bestimmen / identifizieren (v) | determine / define | déterminer | determinare | determinar |  | 
| bestrahlen (v) | irradiate / illuminate / shine on | irradir | irradiare | irradiar |  | 
| beständig (adj) | resistant | résistant | resistente | risistente |  | 
| beurteilen (v) | judge | juger | giudicare | enjuiciar |  | 
| beweglich (f), Führungsschiene | Guide rail, movable | Rail de guidage, mobile | Rotaia di guida, mobile | Carril guía, móvil (m) |  | 
| beweglich, Brettchen |  |  |  |  |  | 
| beweisen (v) | prove | prouver | provare | probar |  | 
| biegen (v) | bend | plier | piegare | combar |  | 
| binden (v) | bind | lier | legare | ligar |  | 
| biologisch (adj) | biological | biologique | biologico | biológico |  | 
| biologisch abbaubar (adj) | biodegradable | biodégradable | biodegradabile | biodegradable |  | 
| blank reiben (v) | furbish | faire briller | lucidare | pulir |  | 
| blasen bilden (v) | bubble (form) | former des bulles | fare le bolle | formar burbujas |  | 
| blass (adj) | pale | pâle | pallido | pálido |  | 
| brandfördernd (adj) | oxidizing | oxydation | ossidante | oxidante |  |