kevna -kev-ke'a- gismu

x₁ is a cavity/hole/hollow/cavern in x₂; x₁ is concave within x₂; x₂ is hollow at locus x₁.

Also pit, depression, concavity; hollow (= selke'a). See also fenra, kunti, canlu, canko, galxe, tubnu.

jbovlaste

In notes:

canko: x₁ is a window/portal/opening [portal] in wall/building/structure x₂.
canlu: x₁ is space/volume/region/room [at-least-3-dimensional area] occupied by x₂.
fenra: x₁ is a crack/fissure/pass/cleft/ravine/chasm/[defect/flaw] [shape/form] in x₂.
galxe: x₁ is a/the throat/gullet [body-part] of x₂; [metaphor: narrow(ing) opening of a deep hole].
kunti: x₁ [container] is empty/vacant of x₂ [material]; x₁ is hollow.
tubnu: x₁ is a length of tubing/pipe/hollow cylinder [shape/form] of material x₂, hollow of material x₃.
befyba'a: be₁=ba₁ is the navel / belly button (umbilicus) of be₂=ba₂.
dagyke'a: k₁ is a pothole in road d₁=k₂.
denke'a: x₁=k₁ is a tooth cavity/dental caries [demineralized site] of tooth x₂=k₂=d₁
digyligykamju: k₁ is a dropstone/stalagmite/stalactite/icicle/rusticle of material k₂=s₂=d₂.
feskevlu'a: x₁ is a sewer carrying waste through x₂ that stretches from x₃ to x₄ and goes through points x₅ (set)
greke'a: x₁=k₁ is a hole in x₂=k₂=p₂ to/between x₃=p₃ from/and x₄=p₄ permitting passage by x₅=p₁.
jeske'a: x₁ is a needle eye of needle x₂
jintyke'a: k₁=j₁ is a well in k₂ containing fluid j₂ at location j₃.
kevlu'a: p₁=k₁ is a tunnel through obstacle k₂, that stretches from p₂ to p₃ and goes through points p₄ (set)
kevyxejyji'o: k₁=xe₁=j₁ is a cleft/dimple chin of xe₂.
krilykevro'i: x₁ is a quantity/is made of geode of composition x₂
kunkevrutni: x₁ is Minecraft, the video game by Mojang Studios, version x₂ (defaults to current version at time of writing)
ma'arbi'i: j₁ is a valley between mountains/hills c₁=j₂ in terrain c₂.
ma'arfe'a: f₁ is a canyon/ravine/chasm in mountain f₂=c₁ in terrain c₂.
selctebi: x₁ is an orifice, with lip x₂, of body x₃.
selke'a: k₂ is hollow with hole/cavity k₁; k₂ is hollow at locus k₁.
terzbi: n₃ is a nostril of n₂ (main body) in nose n₁.
dolna: x₁ is a (topological) hole in object x₂
sra'akpa: x₁ is an indentation/dent/impression/well/hole/bowl/pocket/invagination/sheath/divot in body x₂.
torxesrtubnu: x₁ is a tube/hole/tunnel through (topological) torus x₂.