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’.