Feeling sorrow is an emotion that is often expressed in different ways. GRIEVE, RUE, PITY, MOURN, LAMENT, REPENT, and REGRET are all words that can be used to describe the feeling of sorrow. GRIEVE is a six-letter word meaning to feel intense sorrow or distress. RUE is a three-letter word meaning to feel deep REGRET or remorse. PITY is a four-letter word meaning to feel sorrow or sympathy for someone else's misfortune. MOURN is a five-letter word meaning to feel or express sorrow or grief. LAMENT is a six-letter word meaning to express sorrow or REGRET. REPENT is a six-letter word meaning to feel REGRET or remorse for one's actions. Lastly, REGRET is a six-letter word meaning to feel sorrow or disappointment over something that has happened.