This is the 229th most frequent Turkish word.
derece
"Degree" (as in level, rank, or unit of measurement).
In this sentence, 'derece' is used to indicate a unit of measurement for temperature.
Bugün hava sıcaklığı otuz derece.
Today's temperature is thirty degrees.
Here, 'derece' refers to a level or degree of proficiency or advancement.
Bu konudaki bilgisi ileri bir dereceye ulaşmış durumda.
His knowledge on this subject has reached an advanced level.
In this usage, 'derece' measures an angle's inclination in geometry or construction.