admiral

noun

ad·​mi·​ral ˈad-m(ə-)rəl 

1

archaic : the commander in chief of a navy

2

a

: flag officer

b

: a commissioned officer in the navy or coast guard who ranks above a vice admiral and whose insignia is four stars compare general

3

archaic : flagship

4

: any of several brightly colored nymphalid butterflies compare red admiral

Did you know?

It is a curiosity of history that the word admiral has its source in Arabic, the language of a desert people who acquired their seafaring skills after the great expansion of Islam in the seventh century. As the name for a Muslim chieftain, the Arabic word amir appears as a loanword in medieval Latin documents in spellings such as amiratus, admirandus, and admirallus. These words display a variety of suffixes and an added d, through confusion with the Latin verb admirari, “to admire.” The ending -allus is probably from the Arabic article al, which actually belongs to the following word in phrases such as amir al-‘ali, “supreme commander.” The application of admirallus to a commander of a fleet originated in 12th-century Sicily, was adopted by the Genoese, and then spread to countries throughout western Europe, including France and England.

Examples of admiral in a Sentence

Recent Examples on the Web

He Weidong, China’s number two general, and navy admiral Miao Hua, the Chinese military’s former top political officer, are the latest senior military officials to be targeted in a campaign against corruption in the People’s Liberation Army. —CNN Money, 18 Oct. 2025

As a retired admiral and former supreme allied commander of the North Atlantic Treaty Organization, I was thrilled when Sweden and Finland joined the alliance. —James Stavridis, Twin Cities, 13 Oct. 2025

In an amicus brief filed on Thursday, a group of former secretaries of the Army and Navy and retired four-star admirals and generals encouraged Judge Perry to express caution about the broader use of the National Guard in domestic operations. —Peter Charalambous, ABC News, 9 Oct. 2025

In the Tatsuya Nagamine movie, Z is the name of an admiral who has sworn to destroy all the pirates of the New World, because of the pirates’ dream to have no leader, motivated only by their alliances that uphold the interests of every person and community. —Literary Hub, 9 Oct. 2025

Word History

Etymology

Middle English admirail, admiral, amiral "emir, Saracen chieftain, naval commander," borrowed from Anglo-French, borrowed from Medieval Latin admiralis, admirallus, amiralius, borrowed from Arabic amīr-al- "commander of the," in such phrases as amīr-al-baḥr "commander of the sea" (initial adm- for am- probably by association with Latin admīrārī "to admire")

Note: From the 9th century, the Arabic word amīr, "commander," appears in Medieval Latin documents with a variety of suffixal formations, as amiratus, admirandus, and admirallus; the ending -allus in the latter form has usually been construed as the Arabic definite article al, which belongs to the following word in collocations such as amīr al-'alī, "supreme commander." The more specific application of admirallus to the commander of a fleet originated in 12th-century Norman-ruled Sicily.

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing admiral

• admiral of the fleet
• fleet admiral
• rear admiral
• red admiral
• vice admiral

Kids Definition

admiral

noun

ad·​mi·​ral ˈad-mə-rəl 

-mrəl

1

: a naval commissioned officer with a rank above that of captain

especially : an officer with a rank just above that of vice admiral

2

: any of several brightly colored butterflies

Etymology

Middle English admiral "naval commander," from early French amiral "commander" and Latin admirallus "naval commander," from Arabic amīr-al- "commander of the" (as in amīr al-'alī "supreme commander")

Word Origin

It is a curiosity of history that admiral, a word meaning "naval commander," ultimately has its source in Arabic, the language of a desert people who acquired their seafaring skills largely from the Mediterranean peoples they dominated after the great expansion of Islam in the 7th century a.d. As the name for a Muslim chieftain, the Arabic word amīr appears as a loanword in the 9th century in Medieval Latin documents, in spellings such as amiratus, admirandus, and admirallus. These words display a variety of suffixes and an extra d, through confusion with the Latin verb admirari, "to admire." The ending -allus is probably from the Arabic definite article al, which actually belongs to the following word in phrases such as amīr al-'alī, "supreme commander." The specific application of admirallus to a commander of a fleet originated in 12th century Sicily. The usage was acquired by the Genoese and then spread to the rest of western Europe, including France and England.