In Afrikaans, "Whitney" is typically translated as "Whitney." It does not have a specific meaning in the language beyond being a proper noun.
its not an Afrikaans word
There is no such word in Afrikaans, maybe you spelled it wrong.
Focus
The Afrikaans word "single" means the same as in English, referring to a person who is not married or in a relationship.
If you mean in the sense of "Are you ready?" then the word is 'gereed'.
The word "grappie" is Afrikaans for "joke".
Do you mean Afrikaans? In which case: kombuis
heritage day
Eierspaan is an Afrikaans word for an egg lifter.
It means: little boss
"Lekker" is a Dutch and Afrikaans word that means "delicious" or "tasty," but it can also be used to describe something as pleasant, appealing, or enjoyable.