As a verb: It means to awaken, stimulate, or excite someone or something. For example:
* "The loud noise aroused him from his sleep."
* "The speaker's words aroused the audience's curiosity."
As an adjective: It means awake, alert, or excited. For example:
* "He was aroused by the news."
* "She was in an aroused state."
The specific part of speech will depend on how it is used in a sentence.