Normal stimulus refers to the typical or expected stimuli that one would encounter in a given situation. Synonyms for normal stimulus include standard stimulus, average stimulus, customary stimulus, typical stimulus, and routine stimulus. These synonyms are used to refer to stimuli that are familiar and not out of the ordinary. They are the stimuli that one typically experiences and expects to experience in a given situation. The use of synonyms for normal stimulus allows writers to provide variation in their language usage and avoid repetition in their writing. The choice of synonym can also provide a subtle difference in meaning and emphasis on the nature of the stimulus.