This is the 10062nd most frequent Korean word.
공통
"Common" or "shared."
In this sentence, '공통' is used as an adjective describing '목표', meaning 'common' or 'shared'.
우리는 공통의 목표를 가지고 있습니다.
We share a common goal.
Here, '공통' forms the noun '공통점', which means 'similarities' or 'common points'.
두 문화는 공통점을 많이 가지고 있어요.
The two cultures have many similarities.
In this example, '공통된' is a conjugated form acting as an adjective meaning 'shared' or 'common'.