小问号

小問號
xiǎowènhào
  1. (term of endearment) a child who asks a lot of questions
  2. a child who asks a lot of questions
  3. a small question mark

Wiktionary

Entry Composition

1 小 xiǎo
  1. small
  2. tiny
  3. few
  4. young
2 问号 wènhào
  1. question mark (punct.)
  2. unknown factor
  3. unsolved problem
  4. interrogation