This is the 396th most frequent Afrikaans word.
piet
"Piet" is a common male first name in Afrikaans, equivalent to "Peter" in English.
Here, 'Piet' is used as a proper noun, referring to a person's name.
Piet is ʼn goeie vriend van my.
Piet is a good friend of mine.
In this context, 'pietjie' is a diminutive form of 'piet', referring lovingly to a small bird or a person.
Ek het die pietjie voëltjie in die tuin gesien.
I saw the small little bird in the garden.
'Piet se entjie' in this metaphorical expression means a very short distance.