A person silhouette inside a red circle with a slash — "no pedestrians allowed here," the traffic-sign version of keep out. It's used almost exclusively in its literal sense: warning someone off a path, a closed area, or jokingly telling a group chat "don't come in." Like several warning emoji, it was added in Unicode 6.0 (2010) purely to digitize existing ISO road-sign pictograms rather than to create new expressive symbols.
Keywords: forbidden, no, not, pedestrian, pedestrians, prohibited