Meaning: If you dwell on something bad or unpleasant, you think about it too much or you talk about it too much.
- dwell on sth If I'm lying awake at night dwelling on a problem or a conflict at work, I take my mind off it by reading a book.
- dwell on sth Wayne was dwelling on the fact that he'd just lost his job, so I changed the topic and we talked about something else instead.
dwell on: problems, issues, the past, fears, regrets, loss, conflict
Harry was lying awake dwelling on