1. a district or area of a city or town, especially one regarded as a distinct community
Usage: British spelling; American spelling is 'neighborhood'
2. the people living in a particular area or district
3. the area or region surrounding or near a particular place or thing
Usage: often used in the phrase 'in the neighbourhood of' meaning approximately

Examples

• They moved to a quiet neighbourhood on the outskirts of the city.
• The neighbourhood has a strong sense of community with regular street festivals.
• She grew up in a working-class neighbourhood in the north of England.
• The new shopping centre will serve the entire neighbourhood.
• In the neighbourhood of 500 people attended the concert.
• The neighbourhood watch program has helped reduce crime in the area.