djine -jin- gismu

x₁ is a ring/annulus/torus/circle [shape/form] of material x₂, inside diam. x₃, outside diam. x₄.

Also ellipse, oval (= jincla); (usage has been for near-circles, such as tight spirals, even if not closed loops). Also band, belt, encircle (= jinsru). See also clupa, cukla, dasri, karli, sovda, sruri, konju.

jbovlaste

In notes:

clupa: x₁ is a loop/circuit of x₂ [material].
cukla: x₁ is round/circular [2-dimensional shape/form]; x₁ is a disk/circle/ring.
dasri: x₁ is a ribbon/tape/strip/band/stripe of material x₂.
karli: x₁ is a collar/ring/belt/band around/surrounding x₂ made of material x₃.
konju: x₁ is a cone [shape/form] of material x₂ with vertex x₃.
sovda: x₁ is an egg/ovum/sperm/pollen/gamete of/from organism [mother/father] x₂.
sruri: x₁ encircles/encloses/is surrounding x₂ in direction(s)/dimension(s)/plane x₃.
cukydjine: x₁ is a ring/torus/oval [round, closed shape/form], composed of material x₂, of inner diameter x₃ and outer diameter of x₄
degja'i: j₁ is a ring on finger j₂=d₁.
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.
sradjine: x1=d1=s1 is a bearing of material x2=d2, supporting x3=s2 against force/opposition x4=s3