A business visa is a type of visa that allows an individual to enter a foreign country for business-related activities. Here are the key points in simple terms:

1. Purpose: It is intended for activities like attending meetings, conferences, training sessions, or negotiating contracts.
2. Duration: Typically, it is short-term and does not permit long-term employment or permanent residency.
3. Restrictions: Holders cannot engage in full-time work or receive payment from a local source in the host country.
4. Examples: If you're a businessperson traveling to another country to discuss a deal, attend a conference, or explore business opportunities, you would apply for a business visa.

In summary, a business visa allows you to travel to another country for temporary business activities but not for taking up regular employment there.