IPA: //ˈnɛkstˌdɔr//
KK: /nɛkstˈdɔr/
Referring to a place or person that is immediately adjacent or nearby, especially in relation to a house or building.
My nextdoor neighbor is very friendly and often invites us over for coffee.
In a position or location that is immediately adjacent to another, typically referring to a neighboring house or apartment.
My friend lives nextdoor, so we often visit each other.
Nextdoor → It is formed from "next" (from Old English "nēah", meaning near) and "door" (from Old English "duru", meaning entrance or opening). The word "nextdoor" refers to something that is near the entrance or adjacent to one's own door.
Think of something that is 'near' ('next') your 'entrance' ('door') — that's why nextdoor means the place right next to your door.
No commonly confused words.