Ugh is an interjection used to express disgust, annoyance, or frustration, often drawn out or aspirated. While sometimes functioning as a sigh-like exclamation, it can intensify sentiment in casual speech or writing, conveying reluctance or fatigue. In noun form, it can colloquially refer to a state of frustration or a disliked situation, though this usage is less common than the interjection sense.
Full pronunciation guide
