Caesar

American  

[see-zer] / ˈsi zər /

noun

1. Gaius (or Caius) Julius, c100–44 b.c., Roman general, statesman, and historian.

2. Sidney, Sid, 1922–2014, U.S. comedian.

3. a title of the Roman emperors from Augustus to Hadrian, and later of the heirs presumptive.

4. any emperor.

5. a tyrant or dictator.

6. any temporal ruler, in contrast with God; the civil authority.

7. a male given name: from a Roman family name.

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Caesar British  

/ ˈsiːzə /

noun

1. Gaius Julius (ˈɡaɪəs ˈdʒuːlɪəs). 100–44 _bc , Roman general, statesman, and historian. He formed the first triumvirate with Pompey and Crassus (60), conquered Gaul (58–50), invaded Britain (55–54), mastered Italy (49), and defeated Pompey (46). As dictator of the Roman Empire (49–44) he destroyed the power of the corrupt Roman nobility. He also introduced the Julian calendar and planned further reforms, but fear of his sovereign power led to his assassination (44) by conspirators led by Marcus Brutus and Cassius Longinus

2. any Roman emperor

3. (sometimes not capital) any emperor, autocrat, dictator, or other powerful ruler

4. a title of the Roman emperors from Augustus to Hadrian

5. 1. a title borne by the imperial heir from the reign of Hadrian

   2. the heir, deputy, and subordinate ruler to either of the two emperors under Diocletian's system of government

6. short for Caesar salad

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Caesar Cultural  

1. The family name of Julius Caesar and of the next eleven rulers of Rome, who were emperors.

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Discover More

The emperors of Germany and Russia in modern times adapted the word caesar into titles for themselves — kaiser and czar.

Example Sentences

In recent weeks, he’s been talking to other people about Napoleon and Alexander the Great and Julius Caesar, comparing himself to the most consequential Western leaders in history.

From Slate • May 7, 2026

To make the journey work without the audiences seeing each other, Broucke used a mathematical application called a Caesar cipher, created by the Roman general to send encrypted messages.

From The Wall Street Journal • Apr. 2, 2026

Figures like Alexander the Great, Julius Caesar and Napoleon were adventurers, and while perhaps not personally admirable, they changed history and changed it irrevocably:

From Salon • Mar. 28, 2026

Carrie Canham from Ceredigion Museum in Aberystwyth said the artefacts were the first of their kind to be found in west Wales and "highlight Ceredigion's significance in Emperor Domitian Caesar Augustus's empire building".

From BBC • Feb. 25, 2026

Harding, according to Russell, could have put on a toga and stepped onstage in a production of Julius Caesar.

From "Blink" by Malcolm Gladwell

Related Words

• czar
• emperor
• king
• monarch
• shah
• sultan