Hang-up and Thing

Hang-up noun - A source of persistent emotional distress.

Thing is a synonym for hang-up in preoccupation topic. In some cases you can use "Thing" instead a noun phrase "Hang-up", when it comes to topics like complex. informal substitute

Thing noun - A member of the human race.

Hang-up is a synonym for thing in idea topic. You can use "Hang-up" instead a noun "Thing". informal substitute