This is the 77th most frequent Estonian word.
pea
"Pea" in Estonian means "head" in English.
In this context, 'pea' is used figuratively to denote a leader or principal person ('head').
Sa oled meie meeskonna pea.
You are the head of our team.
In this sentence, 'pea' is a noun and refers to the body part 'head'.
Mul on valus pea.
My head hurts.
Here, 'pea' metaphorically refers to 'mind' or self-composure.