Definitions:

1. A person's observable emotional state or expression. NOUN
   • The patient displayed a flat affect, showing little emotional response.
2. Have an effect or make a difference to. VERB
   • The dampness began to affect my health.
3. To act physically on. VERB
   • This new pill affects me negatively.
4. To influence or produce a change in something. VERB
   • The weather can affect your mood.
   • Your decision affects me very much.
5. To make believe with the intent to deceive. VERB
   • The serial killer affected a limp to come across more harmless.

Synonyms:

• alter
• change
• demeanor
• emotion
• feeling
• impact
• influence
• modify
• mood

NearBy Words:

• affectation
• affected
• affectedly
• affectedness
• affecting
• affectingly
• affection
• affectional
• affectionate
• affectionately
• affectionateness
• affective