ace

noun (1)
\ ˈās How to pronounce ace (audio) \

Definition of ace

 (Entry 1 of 7)

1a : a die face marked with one spot
b : a playing card marked in its center with one pip
c : a domino end marked with one spot
2 : a very small amount or degree : particle
3 : a point scored especially on a service (as in tennis or handball) that an opponent fails to touch
4 : a golf score of one stroke on a hole also : a hole made in one stroke
5 : a combat pilot who has brought down at least five enemy airplanes
6a : a person who excels at something a computer ace
b : the best pitcher on a baseball team the ace of the staff
ace in the hole
1 : an ace dealt face down to a player (as in stud poker) and not exposed until the showdown
2 : an effective and decisive argument or resource held in reserve
within an ace of
: on the point of : very near to came within an ace of winning

ace

verb
aced; acing

Definition of ace (Entry 2 of 7)

transitive verb

1 : to score an ace against (an opponent)
2 : to make (a hole in golf) in one stroke
3 : to gain a decisive advantage over : defeat usually used with out
4a : to earn a high grade on (something, such as an examination) especially : to get an A on
b : to perform extremely well in he aced every subject

Definition of ace (Entry 3 of 7)

: of first or high rank or quality an ace mechanic

ace

noun (2)
plural aces

Definition of ace (Entry 4 of 7)

: an asexual person (see asexual sense 3b) Like many other aces and aros, I grew up thinking I was broken. I was 19 before I heard the words "asexual" or "aromantic," before I found out that there were other people in the world like me.— Mikayla Micomonaco

Definition of ace (Entry 5 of 7)

: asexual But ace individuals often still feel romantic attraction toward others, as well as a drive to cultivate intimate, loving relationships—just without an intrinsic interest in pursuing the sexual aspect.— Taryn Deoilers

Ace

trademark

Definition of Ace (Entry 6 of 7)

used for a bandage with elastic properties

Definition of ACE (Entry 7 of 7)

1 American Council on Education
2 \ ˌā-​(ˌ)sē-​ˈē How to pronounce ACE (audio) , ˈās-​ \ angiotensin converting enzyme The ACE inhibitors are designer molecules developed specifically to attach to their target enzyme and prevent it from activating angiotensin. Virtually the only thing these drugs do in the body is to interact with ACE. However, ACE is not a very specific enzyme; it acts on hormones besides angiotensin.Harvard Medical Health Letter

Examples of ace in a Sentence

Noun (1) She won the match by scoring more than 30 aces. took a few lessons with a tennis ace to improve his backhand Verb She aced her entrance exams. He aced his annual physical. He aced his opponent on the last point of the match.
Recent Examples on the Web: Noun Alcaraz, of Spain, had to wait until the fifth—and made good with a service ace that ended the night. Jason Gay, WSJ, 8 Sep. 2022 Cheers broke out when Tiafoe finally clinched the match with a searing ace. Daniel Wu, Washington Post, 8 Sep. 2022 The match started out as Ripkens vs. Williamses, but when the girls won 12 of the first 13 points (a Cal ace was the Ripkens’ only point), Shriver intervened and put Cal with Serena and Billy with Venus to even things out. Dan Shaughnessy, BostonGlobe.com, 2 Sep. 2022 Soon, Williams was delivering a 101 mph service winner and a 91 mph ace to seal that set. Howard Fendrich, Chicago Tribune, 1 Sep. 2022 Soon, Williams was delivering a 101 mph service winner and a 91 mph ace to seal that set. Howard Fendrich, Sun Sentinel, 31 Aug. 2022 Pitching opposite of Milwaukee Brewers co-ace Brandon Woodruff, Dunn likely knew runs would be at a premium. The Enquirer, 11 Sep. 2022 The feeling is mutual, according to Cleveland’s ace. Joe Noga, cleveland, 9 Sep. 2022 Rookie first baseman Joey Meyer led off the ninth against Red Sox ace Roger Clemens with a blast that just curled around the right-field foul pole to give Milwaukee a 3-2 win. Jr Radcliffe, Journal Sentinel, 8 Sep. 2022 Recent Examples on the Web: Verb Sunday’s news came on the sixth anniversary of the darkest day in team history, when Marlins ace Jose Fernandez and two other people died when their 32-foot boat slammed into a jetty off Miami Beach on Sept. 25, 2016. Tim Reynolds, Sun Sentinel, 25 Sep. 2022 Mets ace Jacob deGrom pitched four innings Wednesday for Triple-A Syracuse, finishing strong after a shaky start in what could be his last minor league rehab outing before rejoining New York's rotation. Mike Fitzpatrick, ajc, 27 July 2022 Mets ace Jacob deGrom will make what could be his final minor league rehab start with Triple-A Syracuse on Wednesday night. BostonGlobe.com, 25 July 2022 Shohei Ohtani and Aaron Judge got lost in the pitching duel between Angels starter Patrick Sandoval and New York Yankees ace Gerrit Cole. Sarah Valenzuela, Los Angeles Times, 31 Aug. 2022 Yankees ace Gerrit Cole twice banged on the dugout roof, shouting in frustration and getting booed as scuffling New York lost for the 15th time in 19 games, beaten by the Toronto Blue Jays 5-2 Saturday. Larry Fleisher, ajc, 20 Aug. 2022 Yankees ace Gerrit Cole, closer Clay Holmes, catcher Jose Trevino and left-hander Nestor Cortes were added to the AL roster for the All-Star Game on Sunday. Jimmy Golen, Hartford Courant, 10 July 2022 Yankees ace pitcher Gerrit Cole has watched Holmes’ journey closely. John Perrotto, Forbes, 7 July 2022 Yankees ace Gerrit Cole took a perfect game into the seventh inning and his offense blasted four home runs. Evan Petzold, Detroit Free Press, 4 June 2022 Recent Examples on the Web: Adjective An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, ajc, 21 Feb. 2022 An ace American skier who faltered and went home empty-handed. Ted Anthony, chicagotribune.com, 20 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ace.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ace

Noun (1)

14th century, in the meaning defined at sense 1a

Verb

1923, in the meaning defined at sense 1

Adjective (1)

1926, in the meaning defined above

Noun (2)

2008, in the meaning defined above

Adjective (2)

2009, in the meaning defined above

History and Etymology for ace

Noun (1)

Middle English as, borrowed from Anglo-French, going back to Latin ass-, ās "copper money piece (at first a pound, but progressively reduced to a half-ounce), pound unit of weight, unit," of uncertain origin

Note: The word ās has been compared within Latin to asser "wooden beam, pole, post" (generalized from a plural asserēs, from a singular *assis?) and assis, axis (by hypercorrection?) "plank, board," though any relationship is far from certain. A loanword from Etruscan?

Adjective (1)

derivative of ace entry 1

Learn More About ace

Time Traveler for ace

Time Traveler

The first known use of ace was in the 14th century

See more words from the same century

Dictionary Entries Near ace

AC/DC

ace

Ace

See More Nearby Entries 

Statistics for ace

Last Updated

28 Sep 2022

Cite this Entry

“Ace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ace. Accessed 3 Oct. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for ace

ace

noun
\ ˈās How to pronounce ace (audio) \

Kids Definition of ace

 (Entry 1 of 2)

1 : a playing card with one figure in its center
2 : expert entry 2 a flying ace

ace

adjective

Kids Definition of ace (Entry 2 of 2)

: of the very best kind an ace reporter

Ace

trademark
\ ˈās How to pronounce Ace (audio) \

Medical Definition of Ace

 (Entry 1 of 2)

used for a bandage with elastic properties

ACE

abbreviation

Medical Definition of ACE (Entry 2 of 2)

More from Merriam-Webster on ace

Nglish: Translation of ace for Spanish Speakers

Britannica English: Translation of ace for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Challenging Words You Should Know

  • hedgehog reading a book
  • Often used to describe “the march of time,” what does inexorable mean?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!