Wait behind Definition 1 of 2Pro Tip 1/3Remaining Behind Used when someone needs to stay while others leave, often for privacy or extra help. The teacher had Sarah wait behind to discuss her progress. Pro Tip 2/3Extra Attention Implies a need for individual attention, usually from a teacher or authority figure. James had to wait behind to receive feedback on his project. Pro Tip 3/3Delayed Departure Suggests someone is not ready to leave yet, possibly due to unfinished tasks. I'll wait behind to lock up the office.