This is the 407th most frequent Afrikaans word.
siek
Sick.
In this sentence, 'siek' refers to the speaker being physically unwell.
Ek is siek en bly vandag tuis.
I am sick and staying home today.
Here, 'siek' describes an uneasy or unpleasant emotional state, metaphorically referring to being unwell.
Sy het 'n siek gevoel in haar maag oor die slegte nuus.
She had a sick feeling in her stomach about the bad news.
In this usage, 'siek' is used figuratively to describe something in poor taste or morally disturbing.