I'm shocked at the 'suggestion' that he deliberately cheated. = The very 'suggestion' that he deliberately cheated is shocking (to me).
They were careful to avoid any 'suggestion' of impropriety. [=avoid doing anything that could be seen as improper]
There was some 'suggestion' of swelling around his ankle. [=his ankle appeared to be slightly swollen]
(..) to the pyramid district, Then we clean the city out, until the rats have nowhere left to hide. I prefer your earlier suggestion. Round up the leaders of each of Meereen's great families and bring them to me. But I'm the leader of my family. No, Your Grace. (..)2015 TvShow: Game of Thrones Title: Kill the Boy Season: 5 Episode 5