American English

Definition of sum verb from the Oxford Advanced American Dictionary

  

sum

 verb
verb
NAmE//sʌm//
 
Verb Forms present simple I / you / we / they sum
 
he / she / it sums
 
past simple summed
 
-ing form summing
 
 
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Phrasal Verbssum upsum somebody/somethingup
See the Oxford Advanced Learner's Dictionary entry: sum