kujaku means "Peacock" in English.

kujaku written with kanji is 孔雀.
This word contains non-jouyou kanji 常用漢字.
kujaku written with katakana is クジャク.
kujaku written with hiragana is くじゃく.
Romaji ku ja ku
Meaning Cavity Sparrow
School Level ,

Orthography Notes

  • じゃ is a compound kana representing a single syllable with multiple characters.
  • kujaku is a jukujikun 熟字訓 reading for 孔雀 in this word. That is: those kanji are only read that way when they come together like that.

Further Reading

Wikipedia: 孔雀 (Peafowl)