quái

• Freak, monster
• Freak, freakish
  • Sao có chuyện quái thế?: Why is there such a freakish story?
• Mischievous
  • Nghịch quái: To play mischievously, to get into mischief
• [Not] at all
  • Chẳng hiểu quái gì: To understand nothing at all
  • Làm quái gì việc vặt ấy: Such a trifling thing does not matter at all
• How strange, how unusual, how odd
  • Quái, hôm qua còn khỏe thế mà hôm nay đã chết!: How odd, he was so healthy yesterday and to day he is dead!