天南地北

tiānnándìběi
  1. (idiom) far apart
  2. (idiom) from different places; from all over
  3. (idiom) (to talk) about this and that

CEDICT

  1. (of conversation) free; without topic
  2. free; without topic
  3. very distant

Wiktionary

  1. 比喻距离很远。《镜花缘．第六回》：「此后一别，不惟天南地北，后会无期。」也作「海北天南」。
  2. 讲话没主题，无所不谈。

重編國語辭典

Entry Composition

1 天 tiān
  1. day
  2. sky
  3. heaven
2 南 nán south
3 地 dì
  1. earth
  2. ground
  3. field
  4. place
  5. land

classifier: 片
4 北 běi
  1. north
  2. (classical) to be defeated

Related entries

一东一西 yīdōngyīxī far apart