noun

• The act of affecting or acting upon.
• The state of being affected, especially: a change in, or alteration of, the emotional state of a person or other animal, caused by a subjective affect (a subjective feeling or emotion), which arises in response to a stimulus which may result from either thought or perception.
• An attribute; a quality or property; a condition.
• An emotion; a feeling or natural impulse acting upon and swaying the mind.
• A feeling of love or strong attachment.
• Disease; morbid symptom; malady.