an interruption in the intensity or amount of something
source: WordNet 3.0
a missing piece (as a gap in a manuscript)
source: WordNet 3.0
a natural opening or perforation through a bone or a membranous structure
source: WordNet 3.0
An opening; an aperture; a gap; a chasm; esp., a defect in a manuscript, where some part is lost or effaced; a space where something is wanting; a break.
