1. The first czar of Russia (1530-1584)
   - Ivan IV, Ivan the Terrible

Type of: czar, tsar, tzar

• unblushing
• unblushingly
• unbodied
• unbolt
• unbolted
• unbooked
• unbordered
• unborn
• unbosom
• unbound
• unbounded
• unbounded interval
• unboundedness
• unbowed
• unbox
• unbrace
• unbraced
• unbraid
• unbrainwashed
• unbranched
• unbranching
• unbranded
• unbreakable
• unbreakableness
• unbridgeable