noun🔗ShareA demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep."Old wives' tales warned that mischievous nightmares would sit on your chest as you slept, causing bad dreams and making it hard to breathe. "mythologymindsensationsupernaturalsoulChat with AIVocabulary GamePractice Reading
noun🔗ShareSleep paralysis."The student's debilitating nightmares made it hard to focus in class. "mindmedicinephysiologysensationChat with AIVocabulary GamePractice Reading
noun🔗ShareA very bad or frightening dream."I had a nightmare that I tried to run but could neither move nor breathe."mindsensationemotionChat with AIVocabulary GamePractice Reading
noun🔗ShareAny bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure."Cleaning up after identity theft can be a nightmare of phone calls and letters."mindsensationemotionsituationsufferingChat with AIVocabulary GamePractice Reading
