Neighbour
Part of speech: noun
Definition: A person living on adjacent or nearby land.
Part of speech: verb
Definition: To be adjacent to (more often used as neighbouring)
Example sentence: Intercessory prayer might be defined as loving our neighbour on our knees.
Neighbor
Part of speech: noun
Definition: A person living on adjacent or nearby land; a person situated adjacently or nearby; anything (of the same type of thing as the subject) in an adjacent or nearby position.
Part of speech: verb
Definition: To be adjacent to
Example sentence: Recession is when a neighbor loses his job. Depression is when you lose yours.