next door

1. 1.

   at or in or to the adjacent residence

   “the criminal had been living next door all this time”

   Synonymsin the adjacent housein the adjacent apartment

Questions about next door

What does next door mean?

next door means "at or in or to the adjacent residence".

What is another word for next door?

Close synonyms include in the adjacent house, in the adjacent apartment. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is next door a common word?

next door is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.