This is the 14740th most frequent Russian word.
пирамиды
"Pyramids."
In this example, "пирамиды" refers to the famous ancient monuments in Egypt.
Я читал про пирамиды в Египте.
I read about the pyramids in Egypt.
Here, "пирамиды" is used to describe structures resembling pyramids, made of sand.
Мы строили пирамиды из песка на пляже.
We built pyramids out of sand on the beach.
In this sentence, "пирамиды" metaphorically denotes fraudulent investment schemes.