登高一呼

dēnggāoyīhū
  1. to make a clarion call
  2. to make a public appeal

CEDICT

比喻领导者倡导或号召，即有众多的响应者。

重編國語辭典

Entry Composition

1 登高 dēnggāo
  1. to ascend a height; to climb to a high place
  2. to climb a mountain
2 一 yī
  1. one
  2. single
  3. a (article)
  4. as soon as
  5. entire; whole; all; throughout
  6. "one" radical in Chinese characters (Kangxi radical 1)
  7. also pr. yāo for greater clarity when spelling out numbers digit by digit
=3 呼 hū
  1. to call
  2. to cry
  3. to shout
  4. to breath out
  5. to exhale
=3 呼 hū
  1. variant of 呼 hū
  2. to shout
  3. to call out