citadel citable • citation · · · Info · Definitions · Synonyms · Characters · · citadel · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a stronghold into which people could go for shelter during a battle. Synonyms: bastion. · · Noun Definition 1 Synonyms · · · bastion · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C t latin small letter t U+0074