What part of speech is dived?

"Dived" can be a few different parts of speech, depending on how it's used:

* Past tense of the verb "dive": This is the most common usage. For example: "She dived into the pool."

* Past participle of the verb "dive": This is used in perfect tenses and passive voice. For example: "He had dived to the bottom of the lake." or "The treasure was dived for by many explorers."

So, without more context, it's impossible to say definitively what part of speech "dived" is.