It is a conjunction that is used to connect words, phrases, or clauses.
Here are some examples:
* Ina son ka kuma ina son ita. (I love you and I love her.)
* Ya zo kuma ya tafi. (He came and he left.)
* Na sayi burodi kuma na sayi madara. (I bought bread and I bought milk.)
"Kuma" is a very common and versatile word in Hausa, and it is used in a wide variety of contexts.