There is no exact definition for bullying behaviours in workplace, which is why different terms and definitions are common. For example, mobbing is a commonly used term in France and Germany, where it refers to a "mob" of bullies, rather than a single bully; this phenomenon is not often seen in other countries. In the United States, aggression and emotional abuse are frequently used terms, whereas harassment is the term preferred in Finland. Workplace bullying is primarily used in Australia, UK, and Northern Europe. While the terms "harassment" and "mobbing" are often used to describe bullying behaviors, "workplace bullying" tends to be the most commonly used term by the research community.