talking point 
noun
A topic that invites discussion or argument: post-war reconstruction was the major talking point...
- Indeed, one of the major talking points among spectators concerned the witless manner in which so many wickets were thrown away.
- Our discussions with councillors and from open meetings have prompted talking points.
- BBC Sport Online explains the two main talking points and hears arguments from both sides.
- single-acting
- single-action
- single blessedness
- single-blind
- single bond
- single-breasted
- single carriageway
- single-cell protein
- single combat
- single-copy
- single cream
- single currency
- single-cut
- single-decker
- single digging
- singledom
- single-elimination
- single end
- single-ended
- single-entry
- Single European Act
- single European currency
- single file
- single-foot
- single-handed