tcita zei uidje zei-lujvo

t1=u1 is a label on user interface t2=u2 showing information t3.

See uidje.

On affix form:

tcita
x1 is a label/tag of x2 showing information x3.
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:

sinxa
x1 is a sign/symbol/signal representing/referring/signifying/meaning x2 to observer x3.
ba'argau
x1=g1 (agent) marks x3=b2 with mark(s) x2=b1 of material x4=b3.
dagysni
s1 is a road sign meaning s2 to observer/driver/pedestrian s3.
marcynacme'etcita
x1=t1 is a vehicle registration plate of vehicle x2=t2=c2=m1 showing information x3=t3=n1=c1
marcytermi'utcita
x1=t1 is a vehicle registration plate of vehicle x2=mi2=ma1 showing information x3=t3=mi1
selbritcita
x1 is a selbri tag showing information x2
tcitygau
g1 puts a label t1 on t2 showing information t3.
tcityuidje
t1=u1 is a label on user interface t2=u2 showing information t3.
uidje
x1 is a widget of user interface x2.