sefta -sfe- gismu

x₁ is surface/face [bounded shape/form] of [higher-dimension] object x₂, on side x₃, edges x₄.

Also x₄ bounds. See also crane, flira, plita, bliku.

In notes:

bliku: x₁ is a block [3-dimensional shape/form] of material x₂, surfaces/sides x₃.
crane: x₁ is anterior/ahead/forward/(in/on) the front of x₂ which faces/in-frame-of-reference x₃.
flira: x₁ is a/the face [head/body-part] of x₂; (adjective:) x₁ is facial.
plita: x₁ is a plane [2-dimensional shape/form] defined by points x₂ (set); x₁ is flat/[smooth].
bonsfe: x₁ is uneven surface of object x₂
galcpare: x₁=c₁ climbs/[goes up/ascends] upwards on wall/fence/mountain/boulder/obstacle x₂=c₂ using x₃=c₄ [limbs/tools/equipment] towards top/summit x₄=g₁ from base/floor/baseline/standard height x₅=g₃.
jupsfe: x₁=s₁ is a cooking surface for cooking x₂=j₂, surface of object x₃=s₂.
korsenta: s₁=k₁ is a cortex (outermost layer) of structure s₃=k₂.
roksfe: s₁ is a rock face / rock surface of rock / mountain s₂=r₁ on side s₃ with edges s₄.
rufsfe: x₁ is rough surface of object x₂
tumsfe: s₁ is the ground of land s₂=t₁ at location t₂.
palpi: x₁ palpates/palps/touch-feels x₂ (surface structure)