| Noun | 1. | main office - (usually plural) the office that serves as the administrative center of an enterprise; "many companies have their headquarters in New York"mukataa - an Arabic word for headquarters or administrative center; "Arafat was holed up in the mukataa of his West Bank compound" business office, office - place of business where professional or clerical duties are performed; "he rented an office in the new building" | |