1. To continue to be physically present at or in some place or thing after other people have left. One of my men will behind to make sure Robert arrives safely. Tom always remains behind in the office to do work in peace.

2. To persist despite efforts to be removed. There's a lot to love about their newest video game, but it's clear that some technical issues have remained behind from its troubled development period. We had a whole bunch of QA testers working on the software, but it looks like some bugs remained behind in version being shipped to retailers.