zbepi -zbe- gismu

x1 is a pedestal/base/stand/pallet supporting x2 (object/event), of materials/properties x3.

Pallet (= lafyzbe). See also jamfu, jicmu, jubme, tuple, ckana, cpana, loldi, sanli.

In notes:

ckana
x1 is a bed/pallet of material x2 for holding/supporting x3 (person/object/event).
cpana
x1 is upon/atop/resting on/lying on [the upper surface of] x2 in frame of reference/gravity x3.
jamfu
x1 is a/the foot [body-part] of x2; [metaphor: lowest portion] (adjective:) x1 is pedal.
jicmu
x1 is a basis/foundation/underlying or fundamental principle of x2; x1 is at the bottom of x2.
jubme
x1 is a table/flat solid upper surface of material x2, supported by legs/base/pedestal x3.
loldi
x1 is a floor/bottom/ground of x2.
sanli
x1 stands [is vertically oriented] on surface x2 supported by limbs/support/pedestal x3.
tuple
x1 is a/the leg [body-part] of x2; [metaphor: supporting branch].
di'uzbe
z1 is/are the foundation(s) of building/edifice/structure d1 of/for type/purpose d2, made of/with materials/properties z3.
tsetupyzbe
t1=zb1 is a lap [body part] of t2=zu1 supporting zb2.
amfite'atro
x1 is an amphitheater, an oval or round structure having tiers of seats rising outward from a central arena
tcekitaujei
x1 is the 'ce ki tau jei' dialect of Lojban, used by x2 to communicate x3 (si'o/du'u)