lẻ

lẻ
adj
  1. odd (not divisible by two)
  2. (informal, of a number) being a number so irrational it's very difficult to express it in whole numbers or roots of them and to make subsequent calculations easier
  3. (of a banknote) of a low value less than or equal to 20,000 dongs
  4. (chiefly Southern Vietnam) Signifies the “zero(s)” in numbers such as 805 and 2001.

adv
  1. (informal) alone rather than with other people
  2. (of selling or buying) unwholly, for example, when buying a few cigarettes rather than a whole pack

禮

禮
character
  1. chữ Hán form of lễ (“ritual; etiquette; to kowtow; an offering; ceremony”).
  2. Nôm form of lạy (“to kowtow”).
  3. Nôm form of lẻ (“odd (not divisible by two)”).