Definitions for "Nightgown"
A loose gown used for undress; also, a gown used for a sleeping garment.
lingerie consisting of a loose dress designed to be worn in bed by women
a long, loose garment worn to bed
Keywords:  nightdress, nightie, colloq
nightdress, nightie [colloq.
Keywords:  chemise, calf, ankles, mid, goes
a chemise that goes to mid-calf or to the ankles