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Definitions

ruler

[roo-ler] / ˈru lər /
NOUN
historically, person who ruled an area
Synonyms
STRONGEST
czar emperor king monarch shah sultan
STRONG
baron baroness caesar caliph count countess czarina dame duchess duke dynast empress kaiser khan lady lord magnate maharajah maharani majesty mikado mogul oligarch overlord pasha pharaoh potentate prince princess queen rajah rani rex royal sovereign sultana tycoon
WEAK
contessa crowned head gerent imperator
Antonyms
WEAK
commoner subject
NOUN
tool for measuring or calculating length
Synonyms
STRONG
T-square measure rule straightedge yardstick
WEAK
folding rule measuring stick slide rule

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rebecca Ebbage, 32, says the day she started showing TSW symptoms was the day her skin became her "ruler".

From BBC • Mar. 28, 2026

At the time of the massacre, Diakité was commander of the presidential guard and a close ally of Guinea's then military ruler, Moussa Dadis Camara.

From BBC • Mar. 26, 2026

"Only those nations ruled by kings or dictators display the image of their sitting ruler on the coins of the realm," he said.

From Barron's • Mar. 20, 2026

“Only those nations ruled by kings or dictators display the image of their sitting ruler on the coins of the realm.”

From The Wall Street Journal • Mar. 19, 2026

Khrushchev was in New York for a meeting of the United Nations, and it was here that he joined forces with the controversial new ruler of Cuba, Fidel Castro.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin