n.
   - a feeling that something is possible or likely. 
▸a feeling or belief that someone is guilty of an illegal or dishonest action.
 - cautious distrust.
 - a very slight trace:
 a suspicion of a smile.
 
 
  Phrase
  
    - above suspicion
 too good or honest to be thought capable of wrongdoing.  - under suspicion
 suspected of wrongdoing. 
   
  Etymology
  ME: from Anglo-Norman Fr. suspeciun, from med. L. suspectio(n-), from suspicere ‘mistrust’.