affect ˈfɛkt/ verb
affects; affected; affecting
affects; affected; affecting
Learner's definition of AFFECT
[+ object]
: to produce an effect on (someone or something): such as
: to act on (someone or something) and cause a change
: to cause strong emotions in (someone)
: to cause a change in (a part of the body)
: to cause illness in (someone)
Usage Do not confuse the verbs affect and effect. Affect means to act on or change someone or something. Effect means to cause something to happen.
Note that the verb affect and the noun effect are used in contexts that are similar.
formal : to pretend that a false behavior or feeling is natural or genuine
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