Ace vs Master

When to use each in English, with meaning, register, and examples.

Ace

Top 2,000 (common)

Master

Top 1,000 (very common)B2noun
Most common: Master
 AceMaster
Pronunciation🇬🇧 //eɪs//🇺🇸 //eɪs//🇬🇧 /["/ˈmɑːstə(r)/"]/🇺🇸 /["/ˈmæstər/"]/
MeaningA high card in a deck or a very skilled person.Someone very skilled or good at something.
ExampleHe played an ace to win the round.She is a master of classical music, having studied for over a decade.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B2
Part of speechnoun
Collocationsace card, ace athlete, ace pilot, ace skills, ace exampolitical, colonial, slave, obey, please, serve, master of, political, colonial, slave, obey, please, serve, master of, acknowledged, great, undisputed, builder, craftsman, painter, master of, be a past master at something, be a past master of something, do, study for, take, degree, thesis, master in, do, study for, take, degree, thesis, master in, political, colonial, slave, obey, please, serve, master of
Antonyms-apprentice, novice, amateur
Common mistakesConfused with 'ask' - both words have different meanings., 'Ace' is often mistakenly used for 'ace up', which is slang., Learners may use 'ace' as a verb incorrectly.Confused with 'mastery' which is the state of being skilled., Using 'master' inappropriately as a verb without context., Assuming 'master' must refer to a male.
Usage notesUse 'ace' informally to refer to someone skilled. In a card game context, it holds a specific value.Use 'master' when referring to a person who has complete control or skill in a field. It's appropriate in formal and informal contexts but can be seen as overly formal in casual conversations.

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Ace
Master

Frequently asked questions: Ace vs Master

What's the difference between Ace and Master?

Ace: A high card in a deck or a very skilled person. Master: Someone very skilled or good at something.

Which is more common: Ace and Master?

Master is the most common in everyday English.

Can you show an example of each?

Ace: He played an ace to win the round. Master: She is a master of classical music, having studied for over a decade.

Can I use Ace and Master interchangeably?

Not always. Ace and Master are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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