小姑

xiǎogū
  1. father's youngest sister
  2. husband's younger sister; sister-in-law

CEDICT

Entry Composition

1 小 xiǎo
  1. small
  2. tiny
  3. few
  4. young
2 姑 gū
  1. paternal aunt
  2. husband's sister
  3. husband's mother (old)
  4. nun
  5. for the time being (literary)