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

sum

verb
 
/sʌm/
 
/sʌm/
Verb Forms
present simple I / you / we / they sum
 
/sʌm/
 
/sʌm/
he / she / it sums
 
/sʌmz/
 
/sʌmz/
past simple summed
 
/sʌmd/
 
/sʌmd/
past participle summed
 
/sʌmd/
 
/sʌmd/
-ing form summing
 
/ˈsʌmɪŋ/
 
/ˈsʌmɪŋ/
Phrasal Verbs
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    Word OriginMiddle English: via Old French from Latin summa ‘main part, sum total’, feminine of summus ‘highest’.
See sum in the Oxford Advanced American DictionarySee sum in the Oxford Learner's Dictionary of Academic English
previously
adverb
 
 
From the Word list
Oxford 3000
B1
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