vro gai lujvo

g₁ is a door/gate (movable barrier) in portal/doorway (opening) v₁=g₂ between v₂ and v₃, in structure v₄.

Also: hinged/swinging barrier or flap, sliding panel, and possibly window. Cf. vorme, gacri, li'avro, kumfa, dinju, pagre

jbovlaste

In notes:

vorme: x₁ is a doorway/gateway/access way between x₂ and x₃ of structure x₄.
garbimvrogai: gac₁ is a fence gate in fence opening v₁=gac₂ between v₂=b₂=gra₂ and v₄=b₃=gra₂ (unordered), in fence v₄=b₁.
li'avro: v₁ is an exit out of c₂.
lolvrogai: x₁ is a trapdoor (panel/cover) in portal/doorway (opening) x₂ between x₃ and x₄, in structure x₅.