fuhrer (n.)

• arrogator
• autocrat
• bellwether
• caesar
• choirmaster
• choragus
• commissar
• conductor
• czar
• despot
• dictator
• disciplinarian
• driver
• duce
• forerunner
• fugleman
• leader
• martinet
• messiah
• oligarch
• oppressor
• pacemaker
• pacesetter
• pharaoh
• precentor
• ringleader
• standard-bearer
• stickler
• torchbearer
• tyrant
• usurper
• warlord