Regretting something means feeling sorrow or remorse about a past action, decision, or situation, often wishing it could have been different or better. It involves feeling sorry for something you did or did not do and sometimes mourning a loss or mistake. Regret is an emotional response to circumstances beyond one's control or to choices that one wishes they had made differently. In summary:

• Regret can mean to be very sorry for something you have done or missed out on.
• It conveys a sense of wishing that things had happened differently.
• It often involves feelings of sorrow, distress, or disappointment over past events or decisions.

This emotional experience is common and natural when reflecting on life choices or losses.