What are fellowships, associations, and denominations within the Baptist denomination?

This is something I read from [hrc](https://www.hrc.org/resources/stances-of-faiths-on-lgbt-issues-american-baptist-church-usa#:~:text=Although%20ABCUSA%20shares%20many%20traditions,and%20the%20Cooperative%20Baptist%20Fellowship.) >Although ABCUSA shares many traditions, beliefs and values with other Baptists, ABCUSA is a distinct entity from its relatives, the American Baptist Association (ABA), the Southern Baptist Convention (SBC), the Alliance of Baptists, and the Cooperative Baptist Fellowship. (this is why I assume these groups are even comparable) So we have - [ABCUSA](https://en.wikipedia.org/wiki/American_Baptist_Churches_USA) , a " mainline Baptist Christian denomination" - [ABA](https://en.wikipedia.org/wiki/American_Baptist_Association) , "an association of Baptist churches" - [SBC](https://en.wikipedia.org/wiki/Southern_Baptist_Convention) , "a Christian denomination based in the United States" - [AoB](https://en.wikipedia.org/wiki/Alliance_of_Baptists) , "a fellowship of Baptist churches and individuals" - [CBF](https://en.wikipedia.org/wiki/Cooperative_Baptist_Fellowship) , "a Christian fellowship of Baptist churches" Notably, only the last two are considered "fellowships" while the first 3 are either denominations or associations, which becomes even more confusing when you consider that they are all under the Baptist denomination, which is a subsect of Protestantism. Obviously these are groups of churches that associate with each other, but what makes each group an association, denomination, or fellowship? Is there even a meaningful difference? Are some of these interchangeable?