This is the 10207th most frequent German word.
pierre
The word "pierre" is not German; it is French for "stone" or "rock".
Used as a proper noun representing the name of a person, 'Pierre', which is common in French-speaking areas.
Pierre ist ein geschickter Koch.
Pierre is a skilled cook.
Here 'Pierre' is used in an erroneous context meant to represent 'stone'; the correct German word for 'stone' is 'Stein'.
Ich fand eine glänzende Pierre am Strand.
I found a shiny stone on the beach.
'Pierre' might confuse learners because it phonetically resembles 'Birne', which means 'pear' in German.