canlu -cal-ca'u- gismu

x1 is space/volume/region/room [at-least-3-dimensional area] occupied by x2.

Also occupy (= selca'u). See also kensa, bliku, kumfa, kevna, kunti, tubnu, dekpu.

In notes:

bliku
x1 is a block [3-dimensional shape/form] of material x2, surfaces/sides x3.
dekpu
x1 is x2 (default 1) local volume unit(s) [non-metric; e.g. bushel], standard x3, x4 subunits.
kensa
x1 is outer space near/associated with celestial body/region x2.
kevna
x1 is a cavity/hole/hollow/cavern in x2; x1 is concave within x2; x2 is hollow at locus x1.
kumfa
x1 is a room of/in structure x2 surrounded by partitions/walls/ceiling/floor x3 (mass/jo'u).
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.
bolbi'i
x1 is the whole region of space which is between inner sphere x2 and outer sphere x3.
calbra
x1 is voluminous by standard or relatively to x2 (plural)
caljvetei
c1=t1 is space-time occupied by c2.
calsle
x1 is a voxel of model/object x2
caltai
x1 is the geometric shape of x2
caltaicmaci
cm1 is a geometry describing cm2=ca1=t1 geometric object.
calticprigu'i
p1 is a hologram/holograph on surface p2 or projected from radiation source g3 ; p1 is holographic
cibyca'u
x1 is the volume (3-dimensional space) occupied by x2
jinrcaibyca'u
x1 is a region/room/volume of space which is shaped like a washer (or thin or flattened torus/toroid), between inner disk/sphere x2 and outer disk/sphere x3, defined by midplane x4, and containing x5.
relca'u
x1 is the area (2-dimensional space) occupied by x2
selca'u
x2=c1 is space/hyperspace/volume/region/room occupied by x1=c2.
sorlutca'u
p1=c1 is a maze (an area with many paths) occupied by c2, with route(s) leading to exit p2 from entrance p3 via points including p4 (set).
ditcu
x1 is the time-duration/interval/period/[elapsed time] of event x2.
dolna
x1 is a (topological) hole in object x2
te'a'a (exp!)
tekla modal: with key/button... (computer game context)
ezga
x1 (record, movie) has the dimension x2 (ka)