a sphere or province of activity, expertise, or responsibility:Having to pay the bills is not my department. Educationone of the sections of a school or college dealing with a specific field of knowledge:the English department. The sub-depot at Breitenguessbach, which was used for your storage of engineered higher explosives https://www.aupeopleweb.com.au/au/home.php?mod=space&uid=704583