Transitivity

Transitivity may refer to:

In grammar
 Intransitive verb
 Transitive verb, when a verb takes an object
 Transitivity (grammar)

In logic and mathematics
 Transitivity (mathematics)
 Transitive relation, a binary relation in which if A is related to B and B is related to C, then A is related to C
 Syllogism, a related notion in propositional logic

Other
 Transitive Corporation, a computer software firm that developed QuickTransit