| Subject | English | Norwegian Bokmål |
| environ. | alluvial plain A level or gently sloping tract or a slightly undulating land surface produced by extensive deposition of alluvium, usually adjacent to a river that periodically overflows its banks; it may be situated on a flood plain, a delta, or an alluvial fan | elveslette |
| fish.farm. | plain bonito | ustripet pelamide (Orcynopsis unicolor) |
| cables | plain conductor | blank leder |
| comp., MS | plain old telephone service | Plain Old Telephone Service (Basic dial telephone connection to the public switched network, without any added features or functions. Until the 1970s, POTS was the only telephone service offered by local telecommunications providers) |
| comp., MS | plain text | ren tekst (A string of text that is displayed with one value for each text attribute: typeface, slant, and weight) |