If there’s anything you need to know about Gender (from an anthropological / linguistic perspective) ngesiZulu, have a look at these three posts:
Part 1: the basics of gender. In this post, you can find about words for gender(s), and the inherent physical aspect of conceptions around it.
Part 2: gender roles. In this post you can read about the words used to describe various humans, and how these words are linked to complex social constructs.
Part 3: vituperative terms. Here you can read about the dark underbelly of gender – all the insults and curse-words that have a gendered basis, and their distribution according to concepts of masculinity, femininity, homosexuality, fertility and inheritance.
If you’d like to know more, ask in the comments.