nightie nighthawk • nightingale · · · Info · Definitions · Synonyms · Characters · · nightie · · Text Latin · · Script 7 · · Length Definitions · · · (noun) lingerie consisting of a loose dress designed to be worn in bed by women. Synonyms: nightgown, gown, night-robe, nightdress. · · Noun Definition 1 Synonyms · · · nightgown · · Synonym 1 gown · · Synonym 2 night-robe · · Synonym 3 nightdress · · Synonym 4 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E t latin small letter t U+0074