Definition of sum
- reached the sum of human happiness
- the sum of this criticism follows
- —C. W. Hendel
- the sum and substance of an argument
can sum figures in his head faster than I can punch them into a calculator
First Known Use: 1993See Words from the same year
What made you want to look up sum? Please tell us where you read or heard it (including the quote, if possible).
of yeast or being unsettled or frivolous
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