1. the illegal trade or transport of goods, people, or substances
Usage: often used with ‘in’ or ‘of’
2. the movement of vehicles or people through an area
Usage: often in compound forms like ‘drug trafficking’ or ‘human trafficking’

Examples

• The police arrested several people involved in drug trafficking.
• Human trafficking is a serious international crime.
• Wildlife trafficking threatens endangered species worldwide.
• The organization works to combat arms trafficking.
• She was convicted of trafficking stolen goods.
• International cooperation is essential to stop trafficking networks.