Wortnetzwerk: 관심사

Topic of conversation; a subject of discussion or interest.

Curiosity, inquisitiveness; a strong desire to know or learn something.

The main subject that is being discussed or described in a piece of writing, a movie, or a conversation.

The person or thing that is the focus of an action, study, or research. It often refers to the 'target' or 'participants' in an academic experiment.