What do you call your first cousin once removed--your son or daughter--in Cantonese?

In Cantonese, there isn't a single, specific term for your first cousin once removed (your son or daughter). Instead, the term used would be dependent on the gender of your cousin and the gender of their child.

Here's how it breaks down:

If your cousin is male:

* His son: 叔仔 (suk² zai²) - literally meaning "uncle's son"

* His daughter: 叔女 (suk² neoi⁵) - literally meaning "uncle's daughter"

If your cousin is female:

* Her son: 姑仔 (gu¹ zai²) - literally meaning "aunt's son"

* Her daughter: 姑女 (gu¹ neoi⁵) - literally meaning "aunt's daughter"

Important note: These terms are used when addressing your cousin's child directly. When referring to them to someone else, you would use the more formal terms 佢個仔 (keoi⁵ go³ zai²) - "his/her son" or 佢個女 (keoi⁵ go³ neoi⁵) - "his/her daughter."

Beyond these basic terms, the exact words used may vary depending on the specific family relationships and regional dialects.