noun

 

space an empty space or hole in the middle of something, or between two things

There's quite a big gap between the door and the floor.

 

difference a difference between two groups of people, two situations, etc

an age gap

 

absent thing something that is absent and stops something from being complete

There are huge gaps in my memory.

 

time a period of time when nothing happens, or when you are doing something different from usual

I decided to go back to teaching after a gap of 10 years.