
The Office to Monitor and Combat Trafficking in Persons, an agency of the United States Department of State, says that "'modern slavery', 'trafficking in persons', and ' human trafficking' have been used as umbrella terms for the act of recruiting, harboring, transporting, providing or obtaining a person for compelled labor or commercial sex acts through the use of force, fraud, or coercion".

24.9 million people are in forced labor, of whom 16 million people are exploited in the private sector such as domestic work, construction or agriculture 4.8 million persons in forced sexual exploitation, and 4 million persons in forced labor imposed by state authorities. The International Labour Organization estimates that, by their definitions, over 40 million people are in some form of slavery today. The estimated number of slaves is debated, as there is no universally agreed definition of modern slavery those in slavery are often difficult to identify, and adequate statistics are often not available. Estimates of the number of slaves today range from around 38 million to 46 million, depending on the method used to form the estimate and the definition of slavery being used. Contemporary slavery, also known as modern slavery or neo-slavery, refers to institutional slavery that continues to occur in present-day society.
