Entry 1 sense Webster, 1913 Gabardine /găb'-ẽrd-ēnˌ/ · Gab·ar·dine · IPA /ˈɡæbɚˌdin/ 01 n. A coarse frock or loose upper garment formerly worn by Jews; a mean dress. 1. A coarse frock or loose upper garment formerly worn by Jews; a mean dress.