"Addressed to" is a commonly used phrase for indicating the recipient of a particular message, letter or package. However, there are several synonyms that can be used interchangeably depending on the context. For instance, "directed to" can be used to indicate the intended recipient of a communication. "Marked for" emphasizes the importance and priority of the message in question. "Sent to" indicates that the message is on its way to the recipient but has not yet been received. Meanwhile, "delivered to" suggests that the message has already been received by the recipient. Other synonyms for "addressed to" include "designated for," "destined for," and "intended for." Choosing the right synonym for "addressed to" can help convey the intended meaning and tone of the communication.