selsmudu'i lujvo

x1 is synonymous with / has the same meaning as x2 for interpreter x3; x1 is a synonym of x2

See selsmudukti

In notes:

jvomi'u
The lujvo m1=l1 (text) is an equivalent/interchangable lujvo form of lujvo m2=l1 (text).
selsmudukti
x1 is an antonym of / has polar opposite meaning from x2 for interpreter x3
selsmusmi
x1=sm2=si1 has a similar meaning to x2=sm2=si2 for interpreter x3=sm3.