| Subject | English | Norwegian Bokmål |
| comp., MS | dual boot | dobbeltoppstart (A computer configuration in which two different operating systems are installed and either can be loaded at start-up) |
| immigr. | dual citizenship | dobbelt statsborgerskap |
| el., sec.sys. | dual-comparer phase comparison protection | fasesammenligningvern med halvbølgemåling |
| el., sec.sys. | dual-comparer phase comparison protection | sammenligningvern med halvbølgemåling |
| environ. | dual economy An economy based upon two separate/distinct economic systems which co-exist in the same geographical space. Dualism is characteristic of many developing countries in which some parts of a country resemble advanced economies while other parts resemble traditional economies, i.e. there are circuits of production and exchange | dobbel økonomi |
| math. | dual process | doble prosessen |
| comp., MS | dual stack | dobbel stakk (For Windows CE .NET, an IP protocol stack that supports IPv4 and IPv6 independently or jointly. The DNS name resolution may yield both IPv4 and IPv6 addresses. Algorithms are used to determine source and destination addresses, thus determining which stack - IPv4 or IPv6 - to use) |
| math. | dual theorem | dual teorem |
| comp., MS | dual-tone multiple-frequency | Dual Tone Multiple-Frequency (The signaling system used in telephones with touchtone keypads, in which each digit is associated with two specific frequencies) |
| environ. | dual waste management To reduce the quantity of packaging waste, and thereby of overall MSW, Germany introduced a far-reaching legislation to reduce waste, based on the producer's responsibility principle. Industry was given the option to set up a third party organization which would carry out the collection and sorting of sales packaging for care of manufacturers and retailers. Thus, Some 600 companies created "Duales System Deutschland" in 1990 ("Dual" because it meant creating a second collection system in parallel to the existing waste collection system of the local authorities). Duales System Deutschland (DSD), now has overall responsibility for the separate collection and recycling of packaging. At present, the Dual System is the only nationwide system for the collection and sorting of sales packaging. Packaging participating in this collection system is marked with the Green Dot | dobbeltavfallsstyring |