How to say correctly "fish" in Korean?
안녕하 십니까!

I have learned several ways to say "fish" in Korean through some native Korean speakers or books. At this moment, I got the following ways to express "fish" in Korean:
1. 물고기 [mul.go.gi]
2. 고기 [go.gi]
3. 마리
4. 낚다
5. 어류[eoryu]
6. 물고기자리
7. 생선[seng.sohn]
Now, I am so confused about these words! Therefore, hope someone can explain further what are the differences among these words. How can I use each correctly?

감사합니다!

Question

How to say correctly "fish" in Korean?
안녕하 십니까!

I have learned several ways to say "fish" in Korean through some native Korean speakers or books. At this moment, I got the following ways to express "fish" in Korean:
1. 물고기 [mul.go.gi]
2. 고기 [go.gi]
3. 마리 
4. 낚다 
5. 어류[eoryu]
6. 물고기자리 
7. 생선[seng.sohn]
Now, I am so confused about these words! Therefore, hope someone can explain further what are the differences among these words. How can I use each correctly?

감사합니다!

Answer

1. 물고기: fish (noun). The most common used vocabulary for fish follwed by 생선. xD
2. 고기: fish (noun). It's fish as food. This word is also used when you go out for fishing or when you say you catch a fish. (고기 잡다)
3. 마리: This is for counting fishes. like, 물고기 1마리, 물고기 2마리, 물고기 3마리, ...
4. 낚다: fish (verb)
5. 어류: 魚類 (漢字語). noun fish that refer to a group of animals. It's a vocabulary for scientific classification.
6. 물고기자리: Pisces. a constellation of the zodiac.
7. 생선: 生鮮 (漢字語). Fish as food.