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Oxford
N. & v.
The arithmetical symbol (0) denoting no amount but used tooccupy a vacant place in decimal etc. numeration (as in 12.05).3 a person or thing of no importance.
A tr.(usu. foll. by out) work out by arithmetic, calculate. b intr.archaic do arithmetic. [ME, f. OF cif(f)re, ult. f. Arab sifrZERO]
tác giả
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