gap (gaps plural )
1 n-count A gap is a space between two things or a hole in the middle of something solid.
He pulled the thick curtains together, leaving just a narrow gap., ...the wind tearing through gaps in the window frames.
2 n-count A gap is a period of time when you are not busy or when you stop doing something that you normally do.
oft N of n
(=break)
There followed a gap of four years, during which William joined the Army.
3 n-count If there is something missing from a situation that prevents it being complete or satisfactory, you can say that there is a gap.
usu with supp
We need more young scientists to fill the gap left by a wave of retirements expected over the next decade..., Like a good businessman, Stewart identified a gap in the market.
4 n-count A gap between two groups of people, things, or sets of ideas is a big difference between them.
with supp, oft N between pl-n
...the gap between rich and poor..., America's trade gap widened..., Britain needs to bridge the technology gap between academia and industry.