What is the meaning of Whom?

What person or people; which person or people.

  1. As the object of a verb.

    As the object of a verb.

    As the object of a preposition.

    Used to refer to a previously mentioned person or people.

    The person(s) whom; whomever.

    (to) who, whom (accusative or dative)

    (to) who, whom (accusative or dative)

    (to) whoever, whomever (accusative or dative)

    that (accusative, inanimate)

    (to) anyone, someone (usually accusative or dative)

    Source: wiktionary.org