An opening or break in a structure or surface. There was a gap in the fence where the dog escaped.
A difference or disparity between two things, such as opinions or levels. The gap between the rich and the poor continues to widen.
A period of time when something is absent or lacking. She took a gap year to travel before starting college.
A space between two objects or points. Mind the gap between the train and the platform.
A missing element or deficiency in a body of knowledge, information, or system. Researchers identified a significant gap in the data regarding long-term effects.