To have an influence on or effect a change in: Inflation affects the buying power of the dollar.
To act on the emotions of; touch or move.
To attack or infect, as a disease: Rheumatic fever can affect the heart.
Feeling or emotion, especially as manifested by facial expression or body language: "The soldiers seen on television had been carefully chosen for blandness of affect” ( Norman Mailer).
Obsolete A disposition, feeling, or tendency.
To put on a false show of; simulate: affected a British accent.
To have or show a liking for: affects dramatic clothes.
Archaic To fancy; love.
To tend to by nature; tend to assume: a substance that affects crystalline form.
To imitate; copy: "Spenser, in affecting the ancients, writ no language” ( Ben Jonson).