* Different Classifications: There are different ways to categorize UN entities. Some are official "specialized agencies" with their own membership and budgets. Others are "programmes" or "funds" with less autonomy.
* Ongoing Changes: The UN system is dynamic. New entities are created, some are merged, and others are restructured over time.
However, here's a breakdown of some common categories:
* Specialized Agencies: There are 15 UN specialized agencies, such as the World Health Organization (WHO), the International Labour Organization (ILO), and UNESCO.
* Programmes and Funds: These are numerous and include UNICEF, UNDP, UNHCR, and many more.
* Other Entities: The UN also has various other entities like the International Court of Justice, the UN Security Council, and the UN Secretariat.
To get a more precise idea, you can refer to the UN's official website: [https://www.un.org/](https://www.un.org/)
You can also find lists of specific agencies by category, such as those related to:
* Development
* Human Rights
* Peacekeeping
* Economic and Social Issues
Remember, the UN system is complex and evolving, making a definitive number of agencies difficult to define.