Armories are places where military equipment and weapons are stored and maintained. There are various synonyms for the word "armories" that can be used interchangeably to provide variety in our language use. Some synonyms include arsenals, depot, ammunition dump, stockpile, military base, and supply center. While these words may have slightly different connotations or implications, they all refer to places where large quantities of military equipment and supplies are kept. By using different synonyms in our writing or conversations, we can add depth to our language and convey a wider range of meanings.