mokca -moc- gismu

x₁ is a point/instant/moment [0-dimensional shape/form] in/on/at time/place x₂.

x₁ is dimensionless. See also jipno, jganu, linji, stuzi, tcika.

In notes:

jganu: x₁ is an angle [2-dimensional shape/form] from vertex x₂ subtended by lateral [segment] x₃.
jipno: x₁ is a tip/point/vertex/extremity/end [0-dimension shape/form] on object x₂ at locus x₃.
linji: x₁ is a line/among lines [1-dimensional shape/form] defined by set of points x₂.
stuzi: x₁ is an inherent/inalienable site/place/position/situation/spot/location of x₂ (object/event).
tcika: x₁ [hours, minutes, seconds] is the time/hour of state/event x₂ on day x₃ at location x₄.
cabjvezva: x₁ overlaps in time and space with x₂
teirmokca: x₁ is an instant/moment in time x₂