any of 28 small oblong pieces marked with 0–6 dots (pips) in each half.
The document then analyses three countries (Britain, Spain and Poland) in depth, with a view to identifying the weakest link or the domino piece most likely to fall first.
a loose cloak, worn with a mask for the upper part of the face at masquerades.
There's a sense that possibly everyone knows who you are, yet wearing a mask (even a domino !) allows you to act differently from the way you might normally act.