What “Di” means
Di is the definite article, the Patois word for "the". It goes before a noun just like in English: di sun, di cake, di pickney.
Examples
Pass di salt
Pass the salt
Di sun hot
The sun is hot.
Cut di cake
Cut the cake.
How to use it
Everyday grammar used by everyone. Note that with adjectives Patois needs no "is": "di soup hot" means "the soup is hot".