| Subject | English | Spanish |
| transp., energ.ind. | counterweight for tightening overhead contact line | contrapeso de tensión de las catenarias |
| gen. | fiscal tightening | restricción presupuestaria |
| chem., el. | latch-tightening screw | tornillo de fijación |
| chem., el. | latch-tightening screw | tornillo de bloqueo |
| fin. | monetary tightening | endurecimiento de las condiciones monetarias |
| transp., energ.ind. | pull-off for tightening overhead contact line | contrapeso de tensión de las catenarias |
| gen. | sequential tightening equipment | equipo de apriete secuencial |
| transp., mater.sc. | to tighten alternatively on the left/right sides | asegurar al tresbolillo |
| mech.eng. | to tighten the coupling | apretar el enganche |
| hobby | to tighten the girth | ajustar la cincha |
| hobby | to tighten the girth | cinchar |
| mech.eng. | to tighten the tube ends | rebordear los extremos de los tubos |
| dril. | tighten up emulsion or mud | estabilizar la emulsión o el lodo |
| gen. | Tighten your abdomen and straighten your back | Aprieta el abdomen y endereza la espalda |
| mech.eng., el. | tightening band | tapaescobillas |
| mech.eng. | tightening bolt | tornillo tensor |
| transp., mech.eng. | tightening cone | cono de fijación |
| mech.eng. | tightening disc | refuerzo de apriete |
| mech.eng. | tightening disk | refuerzo de apriete |
| mech.eng. | tightening key | contrachaveta |
| transp., construct. | tightening key | cuña de apriete |
| fin. | tightening of monetary conditions | endurecimiento de las condiciones monetarias |
| mech.eng. | tightening part | pieza de bloqueo |
| mech.eng. | tightening part | pieza de apriete |
| industr., construct. | tightening pulley | polea de arreglo |
| mater.sc. | tightening ring | aro de fleje |
| mech.eng. | tightening screw | tornillo de sujeción |
| transp., construct. | tightening screw | tensor |
| transp., mech.eng. | tightening torque | par de apriete |
| mech.eng. | tightening torque | par de sujeción |
| transp., mech.eng. | tightening torque | contrapar apretado |
| coal. | tightening wedge | calzo |
| mech.eng. | tightening yoke | brida de apriete |
