张口

張口
zhāngkǒu
  1. to open one's mouth (to eat, speak etc)
  2. to gape
  3. to start talking (esp. to make a request)

CEDICT

to open one's mouth; to start to speak

Wiktionary

  1. 开口。表示说话、要求、饮食、唱歌等。
  2. 惊讶得说不出话的样子。

重編國語辭典

Entry Composition

1 张 zhāng
  1. to open up
  2. to spread
  3. sheet of paper
  4. classifier for flat objects, sheet
  5. classifier for votes
2 口 kǒu
  1. mouth
  2. classifier for things with mouths (people, domestic animals, cannons, wells etc)
  3. classifier for bites or mouthfuls

Containing this entry

张口结舌 zhāngkǒujiéshé
  1. agape and tongue-tied (idiom); at a loss for words
  2. gaping and speechless
饭来张口 fànláizhāngkǒu

Related entries

启齿 qǐchǐ
  1. to open one's mouth
  2. to start talking
张嘴 zhāngzuǐ
  1. to open one's mouth (to speak, esp. to make a request)
  2. to gape
开口 kāikǒu
  1. to open one's mouth
  2. to start to talk
他开口了。

He spoke.

Source: Tatoeba

打开话匣子 dǎkāihuàxiázi to start talking