fissure (n.)
- abysm
- abyss
- arachnoid
- archipallium
- arroyo
- ax
- breach
- break
- breakage
- broach
- burst
- bust
- butcher
- caesura
- canyon
- cavity
- cerebellum
- cerebrum
- cessation
- chap
- chasm
- check
- chimney
- chink
- chip
- chop
- cleft
- col
- convolution
- crack
- cranny
- crevasse
- crevice
- cut
- cwm
- defile
- dell
- diencephalon
- dike
- ditch
- divaricate
- divide
- draw
- excavation
- excise
- fault
- flaw
- flume
- folia
- forebrain
- fornix
- fracture
- furrow
- gap
- gape
- gash
- gorge
- groove
- gulch
- gulf
- gully
- gyrus
- hack
- hew
- hiatus
- hindbrain
- hippocampus
- hole
- hypothalamus
- incision
- interim
- intermission
- interruption
- interval
- jigsaw
- joint
- lacuna
- lance
- leak
- letup
- lobe
- lull
- mantle
- meninges
- mesencephalon
- metencephalon
- midbrain
- moat
- myelencephalon
- neopallium
- notch
- nullah
- ope
- open
- opening
- pallium
- pare
- part
- pass
- passage
- pause
- pons
- prune
- ravine
- rend
- rent
- rhombencephalon
- rift
- rime
- rip
- rive
- rupture
- saw
- scale
- schism
- scissure
- seam
- separate
- slash
- slice
- slit
- slot
- snap
- snip
- splinter
- split
- spread
- start
- subthalamus
- suspension
- tap
- tear
- telencephalon
- thalamus
- trench
- valley
- ventricle
- vermis
- void
- wadi
- whittle
fissure (v.)
- amputate
- ax
- bisect
- breach
- break
- broach
- burst
- bust
- butcher
- carve
- chap
- check
- chink
- chip
- chop
- cleave
- crack
- cut
- defile
- dichotomize
- dike
- disintegrate
- dissever
- ditch
- divaricate
- divide
- draw
- excise
- exfoliate
- fault
- flaw
- fracture
- furrow
- gap
- gape
- gash
- gorge
- groove
- gulf
- hack
- halve
- hew
- hole
- incise
- joint
- lance
- leak
- lobe
- lull
- mantle
- notch
- ope
- open
- pare
- part
- pass
- pause
- prune
- rend
- rent
- rift
- rime
- rip
- rive
- rupture
- saw
- scale
- scissor
- seam
- separate
- sever
- slash
- slice
- slit
- slot
- snap
- snip
- splinter
- split
- spread
- start
- sunder
- tap
- tear
- trench
- void
- whittle
