Definition of ace verb from the Oxford Advanced Learner's Dictionary

 

ace

 verb
verb
BrE BrE//eɪs//
 
; NAmE NAmE//eɪs//
 
Verb Forms present simple I / you / we / they ace
BrE BrE//eɪs//
 
; NAmE NAmE//eɪs//
 
he / she / it aces
BrE BrE//ˈeɪsɪz//
 
; NAmE NAmE//ˈeɪsɪz//
 
past simple aced
BrE BrE//eɪst//
 
; NAmE NAmE//eɪst//
 
past participle aced
BrE BrE//eɪst//
 
; NAmE NAmE//eɪst//
 
-ing form acing
BrE BrE//ˈeɪsɪŋ//
 
; NAmE NAmE//ˈeɪsɪŋ//
 
Exams and assessment
 
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ace something (informal, especially North American English) to be successful in something He aced all his tests. They watched the golfer ace the 17th hole (= get the ball into the hole using only one shot). See related entries: Exams and assessment Word Origin Middle English (denoting the “one” on dice): via Old French from Latin as ‘unity, a unit’.
See the Oxford Advanced American Dictionary entry: ace