| Subject | English | Spanish |
| pack. | front side | pared frontal |
| agric. | front side | cara de caída |
| pack. | front side | testero |
| comp., MS | front side bus | bus frontal (The bus within a microprocessor that connects the CPU with main memory. It is used to communicate between the motherboard and other components in a computer system) |
| transp., mil., grnd.forc. | front side lamp | luz de posición lateral delantera |
| transp., mil., grnd.forc., el. | front side lamp | luz de posición delantera |
| earth.sc., mech.eng. | front side of blade | vientre del impulsor |
| earth.sc., mech.eng. | front side of vane | vientre del impulsor |
| construct. | reservoir impounded by front and side embankments | embalse formado por diques |