What is a indirect object?

A noun referring to something/someone who was affected by a t ransitive verb, but it not the primary object!

An indirect object is really a prepositional phrase in which the preposition to or for is not stated but understood. It tells to whom or for whom something is done. The indirect object always comes between the verb and the direct object. Example: She gave me a gift. The indirect object always modifies the verb. It may have modifiers and be compound. It is used with verbs such as give, tell, send, get, buy, show, build, do, make, save, and read. Example: She sent the man and me a gift.