Although this word was made up in order to be a contender for the longest word in English, it can be broken down into smaller chunks in order to understand it.
Anti- means that you are against something; monopoly means the exclusive control over something; geographic is related to geography; and the remaining part has to do with nationalism.
So this word means something like 'a nationalistic feeling of being against geographic monopoly,' but you can see that it doesn't have much sense.
The present perfect tense is the word Threw
Athena helps Odysseus carry out his vengeance by helping him conceal and reveal his identity.She augments his own skills, but she does not control him.She makes Odysseus look like himself again. Odysseus explains that Athena is responsible for his magical transformation.<span>Athena has assured Odysseus that he can trust Telemachus, but he does not trust any other member of his family with the news of his return. </span>