When to use collecting in Korean
Korean: 수집[ su-jip ]

When to use it
Collecting (수집) means finding and keeping similar things, like stamps, coins, or leaves. People use this word for hobbies, school projects, or gathering items for work. You can talk about collecting things, or say that collecting is your hobby.
Example sentences
저는 집에서 우표를 수집해요.
I collect stamps at home.
우리는 학교에서 나뭇잎을 수집해요.
We collect leaves at school.
동생은 공원에서 예쁜 돌을 수집해요.
My younger sibling collects pretty stones in the park.
제 취미는 엽서 수집이에요.
My hobby is collecting postcards.
문구점에서 산 스티커를 수집해요.
I collect stickers that I bought at the stationery store.
여행할 때 저는 기차표를 수집해요.
When I travel, I collect train tickets.