Definitionsregional note: in AM, use neighborly
graded adjective & adjective If the people who live near you are neighbourly, they are friendly and helpful. If you live in a neighbourly place, it has a friendly atmosphere. ⇒ The noise would have provoked alarm and neighbourly concern. ⇒ The older people had stopped being neighbourly to each other. ⇒ ...a small, neighbourly seaside resort. neighbourliness
uncountable noun ⇒ The head of state said his country had always attached great importance to good neighbourliness.
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