鏖戰 [－战]

Jyutping ngou4 zin3
Pinyin áo zhàn

Definitions (CC-CEDICT)
  1. bitter fighting
  2. a violent battle
Definitions (Wiktionary)
  1. verb, formal
    to fight a fierce battle; to fight hard
    (syn.) 酣戰, 激戰, 激战, 苦戰, 苦战, 酣战