oppvarmingen is the masculine singular definite of oppvarming.

oppvarmingN

Kven

1lämmitysN

2(forberedelse)alkulämmitysN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:46458Edit on GitHub Suggest

liegganeapmiN; liggenN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:192565Edit on GitHub Suggest

Case	Sg	Pl
Indef	oppvarming	oppvarminger
Def	oppvarmingen / oppvarminga	oppvarmingene