Meaning & use

ace

noun, verb·Everyday

Last updated

UK/eɪs/
US/eɪs/

Meanings

  1. nouncountableinformalapproving

    A person who is extremely skilled at a particular activity.

    Grammar: Countable and often approving: an ace at chess; can also stand before a noun: an ace reporter.

    Patterns

    • an ace at something
    • an ace pilot
    • an ace with computers

    My uncle is an ace at fixing old radios.

    She is an ace photographer who covers big games.

  2. nouncountable

    A playing card with one large symbol, often ranked as the highest or the lowest card.

    Grammar: Countable; in many games it can count high or low depending on the rules.

    Patterns

    • the ace of spades
    • play an ace
    • hold an ace

    He held the ace of hearts and won the trick.

    In this game the ace can count as one or eleven.

  3. verbtransitiveinformal

    To perform extremely well in a test, interview, or difficult task.

    Grammar: Takes an object: ace the exam; informal and common in school and work contexts.

    Patterns

    • ace a test
    • ace an interview
    • ace the presentation

    I studied all week and aced the chemistry quiz.

    She aced her driving test on the first try.

Word forms

pluralaces
third person singularaces
past tenseaced
past participleaced
-ing formacing

Common combinations

an ace at something
He is an ace at mental arithmetic.
ace a test
She aced every test that semester.
an ace pilot
The ace pilot was honored after the war.
the ace of spades
She played the ace of spades to win the hand.
an ace up your sleeve
He kept one more idea as an ace up his sleeve.

Synonyms and how they differ

expert
Expert is neutral and can be a noun or adjective; ace is informal praise for outstanding skill.
master
Master stresses long experience and complete control; ace often means brilliant at one activity.
whiz
Whiz is very informal, often for technical or quick skill; ace is broader and can be attributive.

Opposites

beginnernovice

Practice

Which word best fits the informal meaning? The new programmer is a real ___ at finding bugs.

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