Huainaputina is a volcanic peak located in Peru. However, if you're looking for synonyms for the word "huainaputina," there aren't any direct ones. Instead, you can use related words such as "volcano," "mountain," or "geological formation." Other synonyms could be "eruption," "crater," "magma," or "igneous rock." These words describe geological features and phenomena and can be used interchangeably depending on the context. For example, you could use "volcano" instead of "huainaputina" in a sentence such as "The eruption of the Huainaputina volcano caused widespread damage".