fosse fossarian • fossed · · · Info · Definitions · Synonyms · Characters · · fosse · · Text Latin · · Script 5 · · Length Definitions · · · (noun) ditch dug as a fortification and usually filled with water. Synonyms: moat. · · Noun Definition 1 Synonyms · · · moat · · Synonym 1 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 o latin small letter o U+006F s latin small letter s U+0073