(grammar) A transitive verb.

Making a transit or passage.

Affected by transference of signification.

(grammar, of a verb) Taking a direct object or objects.

(set theory, of a relation on a set) Having the property that if an element a is related to b and b is related to c, then a is necessarily related to c.

(algebra, of a group action) Such that, for any two elements of the acted-upon set, some group element maps the first to the second.

(graph theory, of a graph) Such that, for any two vertices there exists an automorphism which maps one to the other.

(probability) Of a set of dice: not having the intransitive property.