* Noun: This is the most common usage. It refers to the act of protecting or the state of being protected.
* Example: "The government offers protection to its citizens."
* Verb: It can be used as a verb meaning "to shield from harm" or "to safeguard."
* Example: "The mother instinctively protected her child from the danger."
* Adjective: It can be used as an adjective to describe something that provides protection.
* Example: "They installed a protection system for their home."
To determine the correct part of speech, you need to consider how it's being used in the specific sentence.