雷池

léichí
  1. (figurative) prescribed limit; boundary
  2. (historical) An ancient name for a river in modern-day Anhui province, China.
  3. An ancient name for a river in modern-day Anhui province, China.
  4. prescribed limit; boundary

Wiktionary

Entry Composition

=1 雷 Léi surname Lei
=1 雷 léi
  1. thunder
  2. (bound form) (military) mine, as in 地雷 dìléi land mine
  3. (coll.) to shock; to stun; to astound
  4. (Tw) (coll.) spoiler
  5. (Tw) (coll.) to reveal plot details to (sb)
=2 池 Chí surname Chi
=2 池 chí
  1. pond
  2. reservoir
  3. moat

Containing this entry

不敢越雷池一步 bùgǎnyuè Léichíyībù dare not go one step beyond the prescribed limit
不越雷池 bùyuè Léichí
  1. not overstepping the prescribed limits
  2. to remain within bounds