sleepwalker sleepwalk • sleepwalking · · · Info · Definitions · Synonyms · Characters · · sleepwalker · · Text Latin · · Script 11 · · Length Definitions · · · (noun) someone who walks about in their sleep. Synonyms: somnambulist, noctambulist. · · Noun Definition 1 Synonyms · · · somnambulist · · Synonym 1 noctambulist · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 k latin small letter k U+006B l latin small letter l U+006C p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 w latin small letter w U+0077