The objective case is one of the 4 main cases in modern English. It is used for a noun or pronoun that is the direct object of a verb, the indirect object of a verb or the object of a preposition.
Direct Object (the noun which the verb acts on directly):
Please pass the butter.
verb direct object
Indirect Object (the noun to which the verb happens):
Please pass the butter to Simon. / Please pass Simon the butter.
verb indirect object verb indirect object
The Object of a Preposition (the noun which follows a preposition, e.g., in, on, at, near, by):
She lives near Brighton.
preposition object of the preposition
With the exception of "who" and "whom", the objective case causes few problems. This is because nouns do not change, and English speakers can easily distinguish between pronouns in the subjective case (I, you, he, she, it, we, they) and those in the objective case (me, you, him, her, it, us, them). In other languages and old English, the direct object of a verb has its own case, known as the accusative, and indirect objects are shown using the dative case. In modern English, these have transformed into the objective case.
More than I or more than me?
Glossary of grammatical terms