What is the synonym for affect?

The synonym for "affect" depends on the context. Here are some possibilities:

If "affect" means "to influence":

* Impact

* Influence

* Change

* Alter

* Modify

* Shape

* Transform

If "affect" means "to pretend":

* Feign

* Assume

* Put on

* Pretend

If "affect" means "emotion":

* Feeling

* Mood

* Emotion

* Sentiment

* Disposition

If "affect" is used as a noun meaning "emotional expression":

* Emotional response

* Expression

* Demeanor

* Bearing

* Manner

Please provide more context about how you are using the word "affect" to get a more specific synonym.