door [doors](portal of entry into a building, room or vehicle) noun [UK: dɔː(r)] [US: ˈdɔːr]The car door doesn't close properly. = Lo sportello della macchina non chiude bene.
panel [panels](rectangular section of a surface) noun [UK: ˈpæn.l̩] [US: ˈpæn.l̩]