Final answer:
The phrase 'my next door neighbor' specifically refers to an individual living directly adjacent to one's home. It conveys the closeness of the living quarters and encapsulates the daily interactions or relationships one might have with such a neighbor.
Step-by-step explanation:
The phrase "my next door neighbor" refers to someone who lives adjacent to one's own residence, typically in the context of a residential area where houses are situated close to one another. It can describe a variety of interactions and relationships between individuals residing in such proximity. In various contexts, this phrase can be part of descriptive scenarios, ranging from observing the neighbor's habits, like walking a dog every morning, experiencing emotions upon hearing of the neighbor's death, dealing with noise from a neighbor's stereo, or philosophical musings inspired by neighborly boundaries as in Robert Frost's poem "Mending Wall."
The concept of a neighbor can include individuals like a new postal delivery person, someone from across the street, or someone who lives three floors up in the apartment building, but the phrase "my next door neighbor" specifically denotes the person living directly next door. The various scenarios involving neighbors illustrate the daily interactions and the sometimes unexpected bonds or conflicts that can arise from such close physical proximity to others.