Dictionary.com
Thesaurus.com

colonel

American  
[kur-nl] / ˈkɜr nl /

noun

  • colonels
    plural
  1. an officer in the U.S. Army, Air Force, or Marine Corps ranking between lieutenant colonel and brigadier general: corresponding to a captain in the U.S. Navy.

  2. a commissioned officer of similar rank in the armed forces of some other nations.

  3. an honorary title bestowed by some Southern states, as to those who have brought honor to the state, prominent businesspersons, visiting celebrities, or the like.

    When the vice president visited the state he was made a Kentucky colonel.

  4. Older Use. (in the South) a title of respect prefixed to the name of distinguished elderly men.


colonel British  
/ ˈkɜːnəl /

noun

  1. an officer of land or air forces junior to a brigadier but senior to a lieutenant colonel

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Pronunciation

Colonel , with its medial l pronounced as , illustrates one source for the apparent vagaries of English spelling: divergence between a word's orthographic development and its established pronunciation. In this case, English borrowed from French two variant forms of the same word, one pronounced with medial and final , and a second reflecting dissimilation of the first to . After a period of competition, the dissimilated form triumphed in pronunciation, while the spelling colonel became the orthographic standard.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of colonel

1540–50; < Middle French < Italian colon(n)ello, equivalent to colonn(a) column + -ello < Latin -ellus diminutive suffix; so named because such an officer originally headed the first column or company of a regiment

Explanation

A colonel is a commissioned military officer in the U.S. Army, Air Force, or Marines who ranks above a lieutenant colonel and below a brigadier general. We still say colonel like the French word it comes from, coronel, which means "chief." To your ear, it probably sounds like "kernel." A colonel leads a regiment, but there are many other levels of officers, all generals, above him. Just below the colonel is the lieutenant colonel, which means colonel’s aide, and below that is the rank of major.

Keep Reading on Vocabulary.com

Vocabulary lists containing colonel

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.

See Examples For:

Guinea's President Mamadi Doumbouya, 41, has dismissed more than 170 soldiers for "desertion", including a colonel who helped him seize power in a coup in 2021.

From BBC Aug. 26, 2026

A former military lawyer who reached the rank of colonel in the Air Force, Graham ran for the Republican nomination for president in 2016.

From Los Angeles Times Jul. 12, 2026

A retired Air Force Reserve colonel and longtime foreign policy hawk, he spent decades cultivating relationships not only across Capitol Hill but with world leaders, diplomats and advocacy organizations.

From Salon Jul. 12, 2026

“The best way to practice live firing is right in the area you’re supposed to defend,” said Chou Yu-ping, a retired Taiwanese air force colonel.

From The Wall Street Journal Jun. 10, 2026

Rochambeau’s son, a colonel, broke security by telling his girlfriend that the American-French force was heading for Chesapeake Bay, where they would meet up with more French forces.

From "George Washington, Spymaster" by Thomas B. Allen

McMaster and several other creative colonels, who, at least for a little while, turned around both the Iraq War and the upper echelons of the U.S.

From Slate Jun. 5, 2026

"The mutiny, led by colonels Charles Andrianasoavina and Lylison René de Rolland, upset the balance of power and led to Rajoelina's seizure of power," said Razakamaharavo.

From Barron's Oct. 16, 2025

By contrast, many authoritarian leaders are colorless, possessing little or no charisma: Consider Francisco Franco, Antonio Salazar, the Greek colonels, Leopoldo Galtieri, Augusto Pinochet, Park Chung-hee.

From Salon Jun. 22, 2025

With more than 1 million tons of concrete, steel, earth and plants already removed from the burn areas, two colonels overseeing the operation reached for superlatives to describe the scope of the work.

From Los Angeles Times Apr. 20, 2025

The two colonels changed out of their uniforms into sweat clothes, and Nancy put a frozen chunk of her homemade stew into the microwave and thawed it.

From "The Hot Zone" by Richard Preston

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training