* Noun: This is the most common use of "communication." It refers to the act of exchanging information, ideas, or feelings.
* Example: "Good communication is essential in a relationship."
* Verb: "Communication" can be used as a verb meaning "to convey information."
* Example: "He communicated his ideas clearly."
* Adjective: While less common, "communication" can be used as an adjective to describe something related to communication.
* Example: "They have a communication system in place."
It's important to look at the context of the sentence to determine the specific part of speech.