* Adjective: This is the most common usage. It describes a noun, meaning trustworthy or dependable.
* Noun: It can be a noun, referring to something or someone that is trustworthy.
* Adverb: Less common, but "reliably" can be used as an adverb meaning in a dependable way.
Examples:
* Adjective: "He is a reliable source of information."
* Noun: "The website is a reliable resource for news."
* Adverb: "The machine works reliably."