What part of speech is such?

"Such" can be several parts of speech, depending on how it's used in a sentence:

* Adjective: When describing a noun, for example: "I've never seen such beauty."

* Pronoun: When standing in for a noun already mentioned, for example: "The food was delicious; I'd like to have such again."

* Determiner: When used before a noun, especially to indicate a specific type, for example: "Such events are rare."

* Adverb: When modifying an adjective or another adverb, for example: "The weather was such terrible weather."

To determine the correct part of speech, you need to consider the context of the sentence.