This is the 3015th most frequent Korean word.
펼치고
"펼치고" means "to unfold" or "to spread out."
The word '펼치고' here means 'to open' (a book or notebook).
저는 공책을 펼치고 메모를 하기 시작했어요.
I opened the notebook and started taking notes.
In this sentence, '펼치고' is used metaphorically to mean 'to unleash' one's imagination.
그녀는 상상력을 펼치고 창의적인 아이디어를 냈어요.
She unleashed her imagination and came up with creative ideas.
Here, '펼치고' means 'to lay out', such as laying out a mat or blanket.