| Subject | English | Spanish |
| mech.eng., construct. | angle sill | umbral en ángulo |
| mech.eng. | car sill | umbral de la cabina |
| mech.eng., construct. | car sill | umbral de cabina |
| transp. | centre sill | viga central |
| life.sc., construct. | dentated sill | contradique dentado |
| construct. | dentated sill | solera dentada |
| transp., construct. | depth of water on sill | profundidad de agua |
| transp., construct. | depth of water on sill | calado sobre solera |
| transp., nautic., tech. | door-sill | falca |
| transp. | end sill | traviesa superior de testero de caja |
| transp., construct. | filling of a canal or river lock by short culverts below the sill | llenado de una esclusa en un río por acueductos ladrones cortos y por debajo del busco |
| construct. | frame sill | durmiente |
| tech. | ground sill | durmiente de fondo |
| tech. | ground sill | marco de armado |
| life.sc., construct. | ground sill | dique de umbral |
| tech. | ground sill | marco de montaje |
| tech. | ground sill | solera de fondo |
| agric., construct. | ground sill | durmiente |
| tech. | ground sill | carrera de fondo |
| met., el. | height of the shell above the sill line | distancia baño-bóveda |
| met., el. | height of the shell above the sill line | altura de la cuba por encima de la puerta de carga |
| transp., construct. | indented sill | umbral con redientes |
| construct. | log sill on pilings | zapata sobre pivotes |
| construct. | log sub-sill | zapata de tenido de trozas |
| life.sc., construct. | log-sub-sill | zapata de tendido de trozas |
| tech. | lug sill | umbral empotrado en las jambas |
| transp., construct. | miter sill | clave del busco |
| transp., construct. | miter sill | busco |
| industr., construct. | mud sill | zapata de asiento |
| transp., construct. | pointing sill | busco |
| industr., construct., met. | port sill | banqueta del quemador |
| industr., construct., met. | refractory sill | masa tampón |
| dril. | salt sills, sheets and lenses | capas intrusivas, mantos y lentes de sal |
| met., el. | shell height above the sill line | altura de la cuba por encima de la puerta de carga |
| met., el. | shell height above the sill line | distancia baño-bóveda |
| transp. | side scuttle sill | borde inferior del portillo |
| transp. | side-sill of underframe | larguero de bastidor |
| mech.eng., construct. | sill angle | soporte del umbral |
| construct. | sill beam | poste durmiente |
| construct. | sill beam | viga |
| construct. | sill beam | pie derecho |
| gen. | sill beam | diagonal |
| industr., construct., met. | sill block | umbral |
| industr., construct., met. | sill block | ladrillo de solera |
| pipes. | sill cock | grifo para colocar mangueras |
| mech.eng. | sill covering | umbral de la cabina |
| construct. | sill dam | solera de protección |
| construct. | sill of the notch | umbral del vertedero |
| transp., construct. | sill on floor | ranura en la solera |
| met., el. | sill plate | umbral de la puerta |
| mun.plan., construct. | sill tiles | piezas de apoyo de ventanas |
| gen. | sills of metal | umbrales metálicos |
| tech. | slip sill | umbral encajado |
| mech.eng., construct. | sloping-sill sand screen | deflector inclinado de arena |
| life.sc., construct. | submerged sill | azud a ras del fondo del lecho |
| transp., construct. | timber sill | umbral o solera de madera |
| industr., construct., chem. | toxic sill | límites de protección |
| transp., construct. | type of sluice gate with overfall sill designed to throw nappe clear of the gate | compuerta de gancho |
| industr., construct. | upper sill | cabio superior |
| construct. | wall below the window sill | antepecho |
| mech.eng., construct. | Walton's rising sill gate | compuerta Walton |
| industr., construct. | window sill | alféizar |
| construct. | wood sills | calzos de madera |
| transp., construct. | wooden sill | umbral o solera de madera |