hiatus (n.)
- aperture
- breach
- break
- caesura
- cavity
- cessation
- chasm
- check
- clearance
- clearing
- cleft
- crack
- defalcation
- defect
- deficiency
- deficit
- disclosure
- discontinuity
- fenestra
- fissure
- fistula
- fontanel
- foramen
- gap
- gape
- gat
- gulf
- hole
- hollow
- inlet
- interim
- intermission
- interruption
- interstice
- interval
- jump
- lack
- lacuna
- leak
- leap
- leeway
- letup
- lull
- margin
- need
- omission
- opening
- orifice
- outage
- outlet
- passageway
- pause
- pore
- room
- shortage
- slot
- space
- split
- stoma
- suspension
- ullage
- want
- yawn