General Synonyms:
* Views
* Understandings
* Interpretations
* Apprehensions
* Insights
* Notions
* Ideas
* Opinions
* Feelings
* Beliefs
More Specific Synonyms:
* Cognitions: (emphasizing mental processes)
* Sensations: (emphasizing physical senses)
* Experiences: (emphasizing personal encounters)
* Conceptions: (emphasizing abstract ideas)
* Judgments: (emphasizing evaluations)
Formal Synonyms:
* Appreciations
* Discernment
* Cognizance
The best synonym will depend on the specific context and the meaning you want to convey.