greku zei uidje zei-lujvo

u1=g1 is a frame enclosing widget(s) g2 in user interface u2

See uidje.

On affix form:

greku
x1 is a frame/structure/skeleton/outline supporting/load-bearing/determining the form of x2.
zekri
x1 (event/state) is a punishable crime/[taboo/sin] to people/culture/judges/jury x2.

In definition:

cmapagjvo
x1 (text) is a lujvo with meaning x2 and arguments x3, and which is constructed from tanru/veljvo x4 such that each element of the veljvo is ultimately only a cmavo (including "{zei}", "{ke}"/"{ke'e}", "{bo}", etc.), gismu, or rafsi of such cmavo or gismu.
zejvo
x1 (text) is a Lojban compound predicate using the particle “zei”; with meaning x2, arguments x3, built from metaphor (tanru) x4.
luvrzei
x1 (text) is a Lojban compound predicate using the particle “zei”; with meaning x2, arguments x3, built from metaphor (tanru) x4.
zeiljvo
x1 (text) is a Lojban compound predicate using the particle “zei”; with meaning x2, arguments x3, built from metaphor (tanru) x4.
zo si si zei fa'o
x1 is a nonsense zei-lujvo using parts x2, silly by standard x3.

In notes:

stura
x1 is a structure/arrangement/organization of x2 [set/system/complexity].
tsina
x1 is a stage/platform/dais/[scaffold] at/in x2 supporting x3, made of material x4.
ga'argreku
x1 is a truss for supporting x2
ji'erslegreku
x1 is the cytoskeleton of cell x2
rekyuidje
u1=g1 is a frame enclosing widget(s) g2 in user interface u2
selca'o
x2=c1 is a window/portal/opening in wall/building/structure x1=c2.
zbadjurek
x1 is a scaffolding for building x2