Breadcrumb Home > Thesaurus > P Synonyms of posthouse Find synonyms for: Noun1. posthouse, post house, hostel, hostelry, inn, lodge, aubergeusage: an inn for exchanging post horses and accommodating ridersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of posthouse (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language