stepsister stepsire • step socket · · · Info · Definitions · Synonyms · Characters · · stepsister · · Text Latin · · Script 10 · · Length 3 · · Syllables Definitions · · · (noun) a sister who has only one parent in common with you. Synonyms: half sister, half-sister. · · Noun Definition 1 Synonyms · · · half sister · · Synonym 1 half-sister · · Synonym 2 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074