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]
(..) I think it's some kind of cognitive transmitter. You inject it like a serum. Why? It's supposed to make you more susceptible to suggestion, but as many as they have, they could create an army. You're ready. You can do this. They can see (..)2014 Divergent