Sometime means at an unknown or unspecified point in time, usually in the future. When your friend says “let's hang out sometime,” they mean they want to see you, but they're not naming a specific day. When someone promises to visit sometime next month, they haven't picked the exact date yet.

The word often appears in casual plans or vague promises. “We should get ice cream sometime” sounds friendly but doesn't commit to Tuesday at 3 p.m. Sometimes people use it when they genuinely mean to do something but haven't figured out when. Other times it's a polite way of being noncommittal.

You might see sometime used differently in older writing or formal contexts, where it can mean “former” or “once,” as in “the sometime mayor of the town.” But in everyday conversation, it almost always means an indefinite time.

People often turn sometime into a specific time to make plans clearer. Instead of “let's study together sometime,” someone might say “let's study together Thursday after school.”