| Subject | English | Spanish |
| comp., MS | functional currency unit | unidad de divisa funcional (A currency unit of a country/region in which a primary legal entity locates its business activities and in which it generates most of its revenue and expenses) |
| health. | functional rehabilitation unit | unidad de rehabilitación funcional |
| mech.eng. | functional sub-unit | subconjunto funcional |
| IT, tech. | functional unit | unidad funcional |
| IT | to support a functional unit | dar soporte |
| IT | to support a functional unit | dar soporte a una unidad funcional |