In linguistics, transitivity is a property of verbs that relates to whether a verb can take direct objects and how many such objects a verb can take.
E.g., A transitive verb means that the verb needs a direct object to make sense.
I.e., She hit the boy – you cannot say just *she hit because the verb requires something ‘to hit’. Other common English verbs which are transitive include, give, see, like, hear, receive, watch, love, etc.
An intransitive verb, instead does not require a direct object for the phrase to be complete. E.g., She sleeps, He sneezed, They sit, The dog ran. etc.