► 名詞一重 [(2)ひとえ]
meaning: eyelid rank: 3☆
彼女は一重だったが
整形して二重になった ⇨ She used to have monolid eyes, but had a surgery for double-lids
(☛ Epicanthic folds, commonly found in East Asians. Many young women find them unattractive and opt for surgery)More examples:- 天才と狂気の差は紙一重だ ⇨ The difference between genius and insanity is one sheet of paper. It’s a fine line