Leave/let somebody alone Definition 1 of 3Pro Tip 1/3Empathy Needed Use the phrase when someone is going through tough times and needs space. After the loss in his family, we should let him alone. Pro Tip 2/3Subtle Request It can be a polite way to ask for personal space without being rude. I'm trying to concentrate—could you please leave me alone? Pro Tip 3/3Quiet Displeasure The phrase might hint at annoyance without stating it directly. Next time you see me with headphones on, leave me alone, okay?