Metonymy Speech disturbance in which patients, commonly with schizophrenia , use inappropriate words or expressions that are related to the proper ones. Examples include consuming a menu, instead of a meal; losing the piece of string of the conversation, not the thread of the conversation. See also word approximation .   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.