A partner is a person who is involved in a partnership, which is a business relationship between two or more individuals or organizations. In a partnership, the partners typically work together to run the business and share in its profits and losses. Partnerships can take many different forms, including general partnerships, limited partnerships, and limited liability partnerships. The specific terms and responsibilities of the partnership will depend on the type of partnership and the agreements between the partners. Partnerships can provide a flexible and collaborative way to run a business, but they also involve shared risks and potential conflicts.