noun

1. An opening in anything made by breaking or parting.

   “He made a gap in the fence by kicking at a weak spot.”

2. An opening allowing passage or entrance.

   “We can slip through that gap between the buildings.”

3. An opening that implies a breach or defect.

   “There is a gap between the roof and the gutter.”

Synonyms: hiatus, col, neck, pass, break, clearing, hole, opening

verb

1. To notch, as a sword or knife.

2. To make an opening in; to breach.

3. To check the size of a gap.

   “I gapped all the spark plugs in my car, but then realized I had used the wrong manual and had made them too small.”