Please explain how first, second, third and so on cousins work?

Question

Also what does ‘once and twice removed’ cousins work in that context?

In: 14

Answer 1

If my sibling and I both each have have kids (hopefully with separate partners,) they’re cousins.

If those cousins have kids, they’re second cousins.

If those second cousins have kids, they’re third cousins, and so on. (call them A and B for next example)

If one of those cousins (third cousin A) has a kid (C), then kid C would be third cousins with B, once removed. Once, twice, three times etc removed speaks to the generational gap. Thing how many steps down the family tree between any two cousins.