vlina gismu

x1 is a logical alternation/disjunction, stating that x2 (du'u) and/or x3 (du'u) is/are true.

See also kanxe, cmavo list a, ja, gi'a, gu'a.

In notes:

jijgi
x1 is a connective question, requesting the connective between x2 (du'u) and x3 (du'u) in that order, assuming that they are true.
kanxe
x1 is a conjunction, stating that x2 (du'u) and x3 (du'u) are both true.
ribga
x1 is a logical statement that x2 (du'u) is true regardless of/irrespective of/independent of/whether or not x3 being/is true.
sigda
x1 is a material conditional/'IF' statement (logical statement) saying that x2 (du'u) logically implies x3 (du'u) ("x3 is true if x2 is true; if x2, then x3; x2 being true is sufficient to guarantee the truth of x3").
skudi
x1 is a logical XOR/mutual-contradiction/exclusive disjunction statement saying that only/exactly one of x2 and x3 can be true at any given time.
tsida
x1 is a logical statement of proposition-equivalence/is a biconditional/'IFF' statement saying that x2 (du'u) is true if and only if x3 is true ("x2 is logically equivalent to x3; x2 being true is sufficient and necessary for guaranteeing the truth of x3; x2 iff x3").
vlinyje'u
at least one of the statements x1 (du'u) and x2 (du'u) is true (logical disjunction)
vlinykemlojvro
v1 is an OR gate with input [pins] v2 and output [pins] v3 in circuit/system v4.
zilvlina
at least one of the statements x1 (du'u) and x2 (du'u) is true (logical disjunction)