synecdoche [Grk ‘understanding one thing with another’]

The association of stimuli or the senses (smell, sight, hearing, taste, and touch). The stimulation of one of these senses simultaneously triggers the stimulation of one of the other senses, resulting in phenomena such as hearing colors or seeing sounds. In language, synesthesia is reflected in expressions in which one element is used in a metaphorical sense. Thus, a voice can be ‘soft’ (sense of touch), ‘warm’ (sensation of heat), or ‘dark’ (sense of sight).