What is the part of speech for quick?

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

* Adjective: Describing a noun. Example: "The quick brown rabbit hopped across the lawn."

* Adverb: Modifying a verb, adjective, or another adverb. Example: "The car moved quick." "He's a quick learner."

* Noun: Referring to the act of being quick. Example: "He surprised everyone with the quickness of his answer."

Therefore, you need more context to determine the exact part of speech for "quick."